• To be or not to be: should you convert AVI to RMVB?

    Posted on January 21st, 2010 admin No comments

    It makes sense to convert AVI to RMVB for fittest file size in the occasions of video backup, video upload or video watch on gadget devices. But are you really convinced that AVI should all go into RMVB for no reason? Have you understood both formats thoroughly and been able to tell the advantages from each other? If not, I am inviting you to join me to resolve this dilemma: to convert or not to convert AVI to RMVB.

    What are the edges of AVI and RMVB?

    In the sense of age, AVI is an older brother to many other formats, including RMVB, but not necessarily resembles them. AVI is actually a container format for encoding methods such as Divx, Xvid, MPEG-4 and H.264. Among the encoding methods, Xvid is superior for DVD-like picture quality, high compression rate and moderate encoding speed. It can manage to convert a 4.7G DVD movie into a fit size of about 700MB. Therefore, Xvid encoded AVI has been a preferred video format for DVD backup.

    As the online video share becomes a fashion, while the average network bandwidth is still incapable to cater to massive demand of video upload/download stream, sharing AVI video online is simply out of the question due to its clumsy size. So, video engineers developed RMVB – a smart video format with vibrant bit rate and real time stream capability. The first feature allows for greedy compression rate to generate smaller file size; the second meets the situation when the RMVB video can actually broadcast across the network in real time like a TV broadcast.

    To wrap up, AVI has DVD-like picture quality and RMVB is advanced for multiple occasional uses.

    Is AVI old enough to be replaced by RMVB?

    Indeed, AVI is a dated video format that is not suitable for network use. But it does make a stand in DVD backup and video playback on gadget devices. It still has superior picture quality we all appreciate. In front of RMVB’s irresistible features, we are curious about this question: can RMVB compromise the advantage of AVI in picture quality? This is vital to resolving the dilemma mentioned. Let’s find out the answer with a comparing experiment.

    Experiment: AVI vs. RMVB in picture quality.

    To make the experiment process easy enough for everyone to handle besides me, I am using Leawo Video Converter to conduct it. It is also more practical for everyone to employ the converter’s optimized presets than fumbling with technical parameters. Additionally, AVI and RMVB hold different parameters, the parameters make no senses in comparison. So I will use the optimized default presets of both formats to convert a 60MB MOV file and observe the results.

    Preparation:

    Download Leawo Video Converter and install. For more information, visit its official page.

    Convert MOV to AVI and MOV to RMVB each in three steps:

    • Launch the program and import the MOV video.
    • Select Xvid AVI preset.
    • Start the conversion without changing anything.
    • After the MOV to Xvid AVI conversion, repeat the procedure with RMVB preset.

    The result:

    AVI and RMVB go neck and neck in process time. So this is not a burden for you to take the liberty to pick either of them as a target format. But the discrepancy in file size is conspicuous. RMVB almost makes it to 1/3 of the original size. Now let the picture qualities speak for themselves.

    To rate the picture quality in scores, regarding the original MOV as 100, I will give 90 and 60 respectively to Xvid AVI and RMVB. The picture quality inevitably degrades as the file size shrinks. A good portion of details are left out as is shown in the RMVB screenshot, while in AVI screenshot it keeps most of the details. At last, the question has been answered: RMVB can’t defeat AVI in picture quality especially of a video with abundant details. By parity of reasoning, it doesn’t pay to convert AVI to RMVB either.

    What about the movies with fewer details, like the cartoons?

    Here is an extra comparison of AVI and RMVB with a VOB video as source.

    We see this outcome more or less like the previous one: RMVB is half the file size of AVI; both are met in process time. And the margin between both in picture quality doesn’t look so distinct this time.

    Here we have another answer to the question: RMVB can keep as many details as AVI can in cartoon movie conversion. So it makes good sense to convert AVI to RMVB in such cases.

    To be or not to be?

    The answer is decided by what kind of movie we are going to convert with regards to picture quality. If it is cartoon movies like Tom & Jerry, it is wise to convert AVI to RMVB to save hard disk space. Otherwise, it is better to do nothing but remain AVI. Thank you for joining me so far, feel free to drop me a line when you have troubles.

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  • How to convert SWF to AVI without frame drop with Moyea SWF to Video Converter?

    Posted on January 18th, 2010 admin No comments

    Maybe you have experienced and feel it is easy to convert video to AVI or MP4 format in good sync, but your experience might not tell you the truth in converting SWF to AVI, MP4 or other video format. It could be tricky if you want to convert SWF to other video format. It is simply because SWF is different from what we know as video formats. Just follow me and you will get knowledge and solution in one shot.

    So, what is special of SWF?

    SWF is a container format for Flash animation, which accounts for a really large portion of web page animation today. To tell from AVI and MP4, the video formats we see everyday, SWF has additional unparalleled trait that allows for interactivity with the audience. It introduces ActionScript, a programming language, to make interactivity possible. So it could be a cartoon movie with triggers to end up with different plots, or a chess game smart enough to beat human player. Such SWF is called Flash application or Flash game. To wrap up, SWF has two characteristics: one resembles the linear data stream of AVI and MP4, the other caters to myriad interactivity that leads to unpredictable branchy data stream.

    What is the tricky part?

    It seems tricky enough to convert Flash applications or Flash game to video format. A media player like Windows Media Player is not a qualified game console at all. But it is possible to make a video of how you win the game or lose. So this can make sense. Nevertheless, the really tricky part is that the frame rate of SWF while playing is not constant. When the scene is very complex, insufficient CPU resources might skip some frames and render a very stumbling display: frame drop. If you let some normal screen capture software to handle the conversion, this annoying phenomenon will definitely go through SWF to AVI conversion to recur in the AVI video.

    The solution?

    Therefore, to handle this tricky frame drop problem, the software must be able to slow down the frame rate to let the CPU render every frame, so that the entire SWF can be re-encoded into AVI or MP4 without frame drop to ensure an exact recurrence. And we are talking about the original technology of Moyea SWF to Video Converter. This professional SWF to Video Converter can convert SWF of any complexity level without frame drop to any popular video formats we know today: AVI, MP4, MPG, MOV, FLV, MKV, 3GP, WMV, etc. So here finishes the introduction, let’s take a look at how to convert SWF to AVI with Moyea SWF to Video Converter; you can download a trial copy of Moyea SWF to Video Converter.

    This SWF to Video Converter is professional yet straight forward in operation. It divides the conversion operation into three steps: Input, Export and Convert.


    In Input step, click the "Add" button to input SWF files from various locations: folder, Moyea Free Flash Downloader, IE cache, URL or Flash Projector. If you get used to drag and drop action, feel free to do so as the fastest way to input SWF files to the program. There are not many buttons on the interface; let me fill you in fast.

    "Switch to single/batch mode": when switching to single mode, you can choose to manually control the interactive SWF to perform a "video recording". When in batch mode, no manual control is available; therefore the SWF will be processed as a linear frame flow.

    "Add", "Remove", "Clear": buttons to manage the input list.



    "Crop": to cut a rectangular area of the SWF to convert, as well as to add an image watermark.

    "Capture": capture a screenshot when playing the SWF in the build-in SWF player.

    "Open": open the folder where the screenshot files and the converted video files are kept.


    In Export step, you will face the essential parameters for SWF to Video conversion: format/style, video quality, audio quality and output folder.



    "Style": contain up to 100 different optimal profiles for popular formats and devices.

    "Video Quality/Audio Quality": shortcuts for two same parameters in "Settings" dialog.

    "Settings": advanced video codec settings, click to view the details.

    "Export To/Locate": the output folder where the converted videos are kept.

    "Rip Audio/Locate": rip the audio in SWF separately to a specified folder.

    "Conversion Mode": switch to Manual mode for interactive SWF such as Flash application, Flash slideshow and Flash game to review the desired content. Switch to Always forward mode for linear SWF, the Flash animation without any ActionScript control.


    In Convert step, if you want to convert from the very beginning point, click "Play and Capture". If you want to convert from another time stamp, click "Play Movie" to play the SWF until you decide to "Start Capture". When you are done, click "Finish" to end recording and start the video conversion with parameters set by previous step.

    Afterwards, the destination folder will pop up with the converted video file selected. Check for yourself to see if Moyea SWF to Video Converter lives up to common expectations: no frame drop, no picture distortion, no capturing delay. Yet there are more buttons and dialog boxes to explore beyond margins of this article. Joining those additional settings and features, you will make your SWF to Video conversion practice really flexible and enjoyable!

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  • Burn Video DVD from any AVI or MP4 files with Leawo Video Converter and Nero Vision

    Posted on January 14th, 2010 admin No comments

    Many of the movies and music videos downloaded from the internet, recorded videos from camcorder and portable videos from iTunes are in AVI or MP4 formats. To burn DVD of these files, video conversion is necessary to convert them to VOB format before DVD burning, no matter which DVD creator, author or burning program is used. Today I am going to introduce a flexible way to burn DVD from any AVI, MP4 or other file formats with Leawo Video Converter and Nero Vision.

    Why choose Leawo Video Converter and Nero Vision?

    Leawo Video Converter is a matured all-in-one digital media converter that can convert all popular formats, such as AVI, MP4, MOV, FLV, WMV, MKV and RMVB to VOB format. Nero Vision is the DVD authoring component of Nero 9 Reloaded. It has full-fledged DVD authoring capability from splitting DVD chapters to creating DVD menu. To get free trial copies of both programs, visit http://www.leawo.com/leawo-video-converter/ for Leawo Video Converter, http://www.nero.com/ena/index.html for Nero 9 Reloaded.

    Now, collect the AVI or MP4 files you would like to burn and let’s rock.

    First step, we convert the AVI or MP4 files to VOB format with Leawo Video Converter. Leawo Video Converter is actually very easy to operate. It won’t take us more than a minute to figure out the whole course by checking out the screenshot manifest below.

    leawo video converter

    Here is a brief introduction of what happened in the screenshot:
    First, we dragged and dropped the AVI and MP4 files into the main frame of the program.
    Next, we went into the Profile box and pinpointed DVD-Video Format (*.vob).
    Then, we opened the setting window to adjust some codec settings.
    Finally, we clicked the button to go conversion.

    So this is the operation of Leawo Video Converter. Very easy and comfortable for us to grab the points, isn’t? But, it could do much better than that. If you are in one of the situations below,

    1. The video has junk parts needed to be weeded out. (See Trim feature)

    2. There are black margins of the video. (See Crop feature)

    3. The video file size is too big to fit into the DVD disc. (See Settings feature)

    4. The video should have a signature to protect its originality. (See Watermark feature)

    5. The recorded video is too dark or too bright. (See Effect feature)

    Feeling frustrated? Just follow the links and you will get helpful tips right away.

    When Leawo Video Converter is focusing on the task, you can take a break and maybe a cup of coffee. Don’t forget to check "Open the output folder after conversion" before you leave. When you are back, the converted VOB files should be displayed in the output folder on top of your desktop.

    Now, let’s talk about how to put these VOB files into a regular Video DVD disc. What I mean is not a different DVD disc (DVD-5, DVD-9, DVD-R, DVD+R), but the DVD burning mode. If you burn these VOB files directly to a DVD disc, what you get is a dummy Data DVD which won’t play on a DVD player. Besides, wouldn’t you like a navigation menu to spice up your work? So we are talking about what Nero Vision can do for us: compile DVD menu and burn a regular Video DVD disc.

    Follow me and let’s take a glimpse at this powerful DVD authoring tool produced by the giant DVD software company.

    Nero Vision adopts wizard mode to sort out a clear progress of DVD authoring. I will post every wizard step here, so don’t worry. You won’t get lost.

    This is the main interface of Nero Vision. It provides many format options for DVD authoring here. We take the first one and leave the rest for your own curiosity.

    Things kind of stack up a little bit. But with the blue marked tips, you can see there is actually not much to care about. We import the VOB files here and then perform video edit like swapping title order, making video chapters and cutting video length. With an indicator bar below, we can easily know when a DVD disc is filled up. Click "Next" when everything is done.

    Well, it looks really a mess here. However, this is where we author the DVD menu. When we come to this part, we can customize the default DVD menu template the program has prepared for us, or go to "Templates" tab to change for another template. To affect the appearance of the DVD menu, we can change its background picture with our own, modify the frame of the thumbnail buttons and reposition the thumbnail buttons on screen. You can start to make fun of authoring DVD menu with such flexibility for your creativity. When you get accustomed with these settings, feel free to check "Advanced Editing" to reveal more exciting DVD menu authoring features. Click "Next" when everything is done.

    Yeah, now put all the mess behind and take a proud feeling about your work. This part will simulate the DVD menu display on screen with a DVD player. Consider the button pad at the bottom right as a remote control. Click "Pre-render…" to give a real-time animated simulation of the DVD menu. Click "Next" when everything is done.

    Now we have come all the ways to the final step: Burn the DVD disc. Don’t get over excited yet. There are still some settings needed to attend to. Check "Burn To…" to make sure you are burning with a real DVD burner not an Image Recorder, unless you want to make a image copy of the authored DVD on hard disk. Change the default "Volume Name" to give it a self-evident one. Go to "Recording Settings" to set a moderate burning speed rather than Max speed. This is usually effective to prevent your years old DVD burner from trashing your disc.

    When it is all set, click "Burn" to start DVD burning. Then, put this fresh-from-the-burner DVD disc to your DVD player and enjoy! How do you feel about burning a Video DVD now? Feel free to drop me a line.

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  • How to rip CSS-protected DVD to AVI format for DVD backup?

    Posted on January 11th, 2010 admin No comments

    First of all, to rip CSS-protected DVD to AVI format is possible with DVD decrypter program, but is confined to legal use of the DVD only. CSS-protection measure has long been the practice for preventing commercial DVDs from being copied to hard disk or cloned to reproduction. But we are allowed to use DVD decrypter to clone our expensive store bought CSS-protected DVD for DVD backup. As for DVD backup, it only makes sense to rip DVD to a format with DVD-like quality, smaller size and high portability. So this is why we are going to rip DVD to AVI format for the best DVD backup effort.

    Normally, we need a DVD decrypter and a DVD converter to accomplish the task. But now we have an integrated program with comprehensible interface. It is called Leawo DVD Ripper.

    Leawo DVD Ripper is highly compatible with any CSS-protected DVD. CSS-protected DVD will be recognized and automatically decrypted without our interference. So let’s focus on how to rip DVD to AVI format in high quality, that is, DVD-like quality, smaller size and high portability.

    Here is the Download link to the software. Need more checkups, please visit the DVD Ripper‘s page.

    This is a very comprehensible DVD decrypter/ripper program. Feed the CSS-protected DVD in the DVD-ROM drive and use the "Load DVD" function on the program main interface. Then you will see the complete titles and chapters rolled out on the list more or less like the screenshot below.

    Click open the "Profile" dropdown box, navigate to "Common Video" to make a choice on AVI profiles. We are going to use "Xvid Movie (*.avi)" profile, for the DVD-like picture quality and excellent sound quality. Based on MPEG-4 compression, it can guarantee the best ratio of quality to file size. As Xvid is an open-source codec, Xvid encoded AVI video is highly portable to be played on other PC easily.

    Then click "Settings" to open codec control. You will see a list of codec parameters: Video Codec, Quality, Bit Rate, Video Size, Frame Rate, Aspect Ratio, etc.

    There are quite a number of parameters set to "auto". It means to program will conduct the Xvid encoding with optimal settings. For beginners, this is a very handy design. But for veterans, it might not be enough to meet your picky demands. So let’s explore the optimal settings for ourselves and gain a better understanding of how the DVD to Xvid AVI conversion works. I am going to manifest the difference among the settings of Bit Rate, the key factor which influences the video quality and file size, by a field-test experiment. Feel compelled to follow me?

    In this experiment, I will rip a 9 second segment of DVD to Xvid AVI in different Bit Rate settings. It is a repetitive action and I think it makes more sense to jump to the conclusion now.

    It is all right if this conclusive data table confuses you. It got me, too, in some senses. LOL. What is behind these data is an equation: File Size = (Video Bit Rate + Audio Bit Rate) * duration /8. If you are perceptive, you would notice this is not an accurate equation and there is small discrepancy between the custom video Bit Rate and the actual video Bit Rate. It is because the Video Bit Rate is vibrant but constant. The actual Video Bit Rate reflects the average of Video Bit Rate. The longer duration of the video is converted, the more approximate the actual Video Bit Rate is to the custom Video Bit Rate.

    Take a 2 hour DVD movie for example, you can be assured to count on the custom Video Bit Rate, say 600, with 128kbps Audio Bit Rate to come up with a 650MB AVI video. ((600+128)*7200/8=655200) By doing this, you have reduced the 4GB DVD movie to 1/6 in size!

    Of course, DVD backup won’t be a valuable one if it doesn’t have DVD-like picture quality. Take a look at the comparison of the screenshots from 600Kbps Video Bit Rate setting, Low Profile, Medium Profile and High Profile.

    Click the links to view the screenshots in full size 720*406.

    600Kbps and Low Profile have just been crossed off because of interior picture quality, while Medium Profile and High Profile are almost the same. If you take the 1.5 times file size multiplication lightly, High Quality Profile is your best choice. Otherwise, Medium Profile is the optimal choice for ripping DVD to Xvid AVI format for DVD backup, with good balance of video quality and file size.

    In conclusion, rip CSS-protected DVD to Xvid format with Medium Profile in Leawo DVD Ripper is the optimal choice for DVD backup. However, this article encourages you to look deeper into the video conversion and use the DVD decrypter/ripper program well. It gives you a picture of how picture quality is in connection with Video Bit Rate. Try to experiment with any Bit Rate setting you want, then you can get the most desirable DVD backup copy of your CSS-protected DVD!

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  • How to join videos to enjoy a video show with Leawo Video Converter?

    Posted on October 13th, 2009 admin No comments

    If you are looking for something to make a whole smooth video in replacement for a bunch of video clips, you have a good shoot with Leawo Video Converter. As a versatile video converter program, Leawo Video Converter can snapshot, trim, crop, merge and even watermark the videos. Now let’s see how to join the video clips into a single movie for enjoyment.

    Firstly, drag all the video clips you want to join into Leawo Video Converter, and change the list order according to time series. It is important not to make mistakes upon the order or you will get a wrong result and have to do it all over again. The merge action follows the profile settings you apply to the first video on the list. Take the case below for example, the merged video will be outputted in 3GP format, the screen size and other attributes the same with the first video.

    leawo video converter

    Therefore, you only need to pick a profile for the first video and focus on it only. Leawo Video Converter offers more than 100 choices on output profiles.

    leawo video converter

    You may access advanced profile settings via Settings button. The codec settings regarding the profile you have selected will be revealed. Note that this will be the final settings for output.

    leawo video converter

    Then you can start the merge conversion now. Feel it too long to wait until it finishes? You can set after done actions for the program and just walk away.

    leawo video converter

    Leawo Video Converter is more than joining your videos together. It is a powerful tool for you to make your videos distributable across platforms, portable terminals and internet. Plus, joyful video editing can be experienced as part of its useful features.

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