Ever wanted to convert that DivX movie you have back to MPEG-1, so you can burn a VCD - well, below is a short guide on how to do this - there are probably better ways around to do this, but below is the method I use which is quite easy to do.

Start by downloading and installing the following software :
iFilmEdit
Nero Burning ROM
VirtualDub
XingMPEG Encoder - please run the .reg file in the archive prior to installation


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1. Sorting out the audio :
Most DivX movies come with MP3 or WMA audio compression. Unfortunately, most of the AVI to MPEG-1 conversion tools do not support compressed audio, so the only way to convert DivX to MPEG-1 with audio is to decompress the audio first.

You can do this using VirtualDub - there are two methods :

Decompress audio within the AVI file

1. Load your DivX/AVI file into VirtualDUB.
2. From the "Video" menu, select "Direct Stream Copy".
3. From the "Audio" menu, select "Full Processing Mode".
4. From the "Audio" menu, select "Compression" and choose "".
5. Save the AVI file - your new AVI file should have non-compressed audio. The problem with this is that the AVI file can get really big, and may exceed the 2 GB AVI file size barrier - in this case, you should extract the audio of the AVI file to a WAV file instead (see below).


Extract the audio of the AVI file to a WAV file
1. Load your DivX/AVI file into VirtualDub.
2. From the "Audio" menu, select "Full Processing Mode".
3. From the "Audio" menu, select "Compression" and choose "".
4. From the "File" menu, select "Save WAV".


2. Convert the video :
Once you have an AVI with an uncompressed audio, you'll need to use XingMPEG Encoder to compress the video to MPEG-1


Start XingMPEG Encoder and select to open a new job.


There are already many included profiles you can use - if you want to make a VCD compatible MPEG-1 file, please use the profiles under the "VideoCD" section. You should choose either "PAL" or "NTSC" depending on the resolution/framerate of your DivX file - clicking on these profiles will show you the properties of this profile - make sure that it matches as closely as possible to the properties of your DivX file (you can check the properties of your DivX file by right clicking on it and selecting "properties"). After you have selected the correct profile, click the "Next" button


Change "Stream Type" to "System"


In the "Video Filename" section, load your original DivX video file


If you choose the extract the audio of the AVI file to a WAV file, in the "Audio Filename" section, load the uncompressed WAV file you made before. Otherwise, leave this section alone.


In the "Target Filename" section, choose the location/filename of your final converted MPEG-1 file.


Click "Finish"


Your JOB file has now been created - you can press "Encode" at any time to start the encoding. A preview windows on the right will display the video currentl being converted. You can press the "Pause" button at any time to abort the encoding - I suggest you test the conversion by converting a small section first, and then pressing "Pause" to abort the encoding - test the output file to see if it is playable and whether the sound is in sync or not.


3. Cut the MPEG-1 File :
The resulting MPG file may be larger than can be fitted on 1 CD-R, so you will need to cut it. I suggest using iFilmEdit to do this. This program is shareware, and can be used for 30 days before you'll need to register and pay for it.

To cut MPG files, all you need to do is to load the MPEG file into this program. In the "footage" window, drag the clip into the "player" window. Go to the "preferences" menu, and change the option to "VideoCD" in the "VideoCD Mode" section. Now use the "mark in" (where the clip starts) and "mark out" (where the clip ends) buttons (bottom left of the Player window) to select the first part of the movie you want to cut (I suggest cutting the first half of the movie) - please take note of the hour:minutes:seconds that your clip ends at. The, go to the "edit" menu and select "record" - the clip you want to cut should now be in the "record" window. Highlight the "record" window and save the clip by going to the "file" menu and selecting "save as". Repeat this for the second half of the movie, making sure you "mark in" at the right spot.


4. Burn the VCD :
Once you have a converted VCD compliant MPEG-1 file, you can use a Video-CD compatible CD-R software to burn a VCD.


Pop an empty CD-R into your CD writer drive.


Start Nero Burning ROM - the "New Compilation" window should pop up, and you should select the "Video-CD" compilation option. You don't need to change any of the default settings, but you can add things like a volume lable to the VCD, if you wish. Click on the "New" button when you are done.


Now drag your converted MPEG-1 file into the new "Video1" window that comes up.


After you are done dragging the files over, from the "File" menu, select "Write CD" to start writing the CD-R.


Done !!

mpeg4可以转回vcd吗？

上面那则英文的短文就是关于MPEG4到VCD的转换的.
MPEG4=DIVX格式

有翻译吗？

我会翻译过来，不过可能要等我先考完前三科了…… :o)