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Start
Click on Start and the program will call Virtual Dub to start processing the video. Depending on the power and speed of your computer,
this could take real time (a 60 minute long video re-encoded in about 60 minutes) or much longer. As
shown to the left, you will see the progress as it processes the video file. If the Start button is grayed out,
it would be for one of two reasons. 1) The source file is not a true AVI file. Even if the file name ends
with .avi, the internal file data determines if it is truly an AVI file. 2) The Virtual Dub program was not
located when Mpeg4 Translator was started up. Close the program, restart it, and make sure you locate
the Virtual Dub program.
MP3 Sound Track
Remember, in order for the Jukebox Multimedia to be able to play the video, it must have an MP3 (MPEG layer 3) stereo sound track. If
the source video file did not have an MP3 stereo sound track then your destination file will have no sound. Mpeg4 translator will signal
this error condition. Obviously, it is pretty useless to have the video file without sound. What you will need in this case is an MP3
encoder available for Virtual Dub to use. There are MP3 encoders (usually packaged together as an encoder and decoder) available on the
Web. If you choose to use the LAME codec, make sure that you have a version built with the ACM front-end. You can find other MP3
codecs on the web by using the search terms ACM, MP3 and CODEC in your favorite web search engine. Once this codec is installed into
your system, Mpeg4 Translator will be able to create final video files with MP3 sound, even if the source video file does not have an MP3
sound track.
If you are unsure what codecs (audio and/or video) your computer has, you can see the list, as shown to the
left, by going to the following location. Click on Start > Control Panel > Multimedia > Devices and then you
will see a list which includes the Video Codecs and the Audio Codecs which are installed in your system.
Decoding of MPEG 2 video files is currently not supported by Mpeg4 Translator. These are usually .mpg or
.mpeg format files, not the required AVI file. There are other tools found on the Internet that may be
downloaded in order to help you with these file types. A good starting place is the web site www.digital-
digest.com.