Codec not supported error on RJ1500

[optimus]

I have an RJTech 1500 divx standalone player. It supports xvid, divx, etc.

Normally, when Qpel is involved I get an error that Qpel codec is not supported. However, lately, I have been getting an error on some xvid encoded files that "codec is not supported." It does not specify which codec is the problem. I know one file was xvid rc3 encoded. I do not know which version of xvid the other files were encoded with. However, I have other xvid rc3 encoded files that play fine on my standalone player. So I don't think the xvid rc3 codec is the problem.

So what could be the problem?

The file has MP3 ABR encoding for audio. I can't imagine that being the codec issue.

Also, I know that fourcc will allow you to change the header on a file, but how can you find out what the current header is? It is my understanding that the xvid rc3 header is a little different from the standard xvid header.
I tried changing to xvid/xvid using fourcc but that didn't work either. I still got the codec not supported error. By the way, video start to play for a split second before the screen goes black and gives me the error.

Any suggestions? I'de like to find out the culprit here. Also, is there any way to determine whether my other non-working xvid files were encoded with the rc3 version?

[3po]

You're correct in that this is not an audio issue. VBR MP3 plays fine on RJ1500. The most likely culprit in the QPEL video codec used to encode the XVID video. To view the codec used in a video file, use G-spot 2.5 beta version (not the official release version!)

To correct the problem, I'd re-encode the video file with nandub. Do not use virtual dub to re-encode as the VBR audio will screw it up.b

[junkmalle]

The file has MP3 ABR encoding for audio.

What do you mean by "ABR"? VBR? CBR? In any case, many Divx/DVD players can't play contant bitrate MP3 audio with very low bitrates like 56 kbps or 64 kbps.