Possibly already converted to VCD??

[Default10]

I ran a MPEG file through Gspot and it indicated that it was an MPEG 1 file. It runs for 20 minutes and is 200MB.

I followed the tutorial to convert it to a VCD and run it through TMPGEnc and it took approximately 3.5hrs.

When it completed, the converted file was 203611KB. The original file was 203388KB. Therefore, it would appear that the file was already in VCD format and all I have done is wasted my time trying to convert it.

How can I tell if the file has already been converted to VCD.

It appears that the VCD still have an MPEG extension, so is the only way you can tell it is in VCD format, by the siize of the file?

Thanks

 

[LTR12101B]

Nero is usually pretty good at telling you if a file needs converting to VCD format - image size and data rate are clues, but are only certain if proving it's NOT.

 

[ChickenMan]

Another way to tell is to load into VirtualDUB, go to File Information. If the first line has Frame size & fps as

352x288, 25 fps
352x240, 29.97 fps
352x240, 23.976 fps

and has the audio Format listed as:

44KHz stereo, 224Kbps layer II

then its a VCD. If any of the above are not as listed then its not a compliant VCD.

 

[Default10]

Thanks ChickenMan. I have confirmed that 3 of the 4 MPEGS I am looking at are VCD compliant, but one of them isnt.

The one that isn't have the following under the information tab of VirtualDub:

352x240, 29.970fps

32Khz mono, 64kbps Layer II.

The MPEG runs fine in windows media player. It is a 90MB file and runs for about 16 minutes.

However, when I follow your tutorial "How to convert a DivX / AVI / ASF / MPEG1 to VCD", it only seems to recognise for the first minute and the conversion process finishes in about 4 minutes and I am left with a 7MB file instead of the 300MB file I am expecting.

I have used your tutorial to successfully convert other similar MPEG 1 files tp VCD, but for some reason, this particular file wont convert.

Any suggestions?

Thanks

 

[ChickenMan]

There is no need to re-encode this 4th mpeg. The Video looks fine its just the audio thats wrong. So demux the mpeg to Video & Audio streams (TMPGEnc), I would then use Goldwave to resample the 32khz to 44.1khz, make the mono to stereo and save out as a WAV file. Convert the WAV to MP2 at 224 bitrate with BeSweet or Tmpgenc. Then re-mux the new audio file with the original video file (best to use is MPEG-VCR but you can use TMPGEnc).