I use FFmpeg 0.6 with out any issues. Sometimes FFmpeg or mencoder may have some issues converting some videos since conversions formats and settings vary greatly. You can try a different video format ( if your video is video.avi try video2.mp4). Also what dose your conversion log and error logs say. To get an more detailed conversion log add the code below at the end of your FFmpeg code at your convert_video.php file.


**BACKUP YOUR FILES FIRST**

PHP Code:
> /home/YOUR_USERNAME/public_html/include/settings/flvid.log 2>&1 "; 
Your FFmpeg code should look like this

PHP Code:
//ffmpegflv - ffmpeg codec 11-2-10 converts to .flv
$cmd_ffmpegflv = "$config[ffmpeg] -i '$video_src' -s 320x240 -f flv -b 600k -acodec libfaac -ab 16k $video_flv > /home/YOUR_USERNAME/public_html/include/settings/flvid.log 2>&1 "; 
Don't forget to change "YOUR_USERNAME" with your servers user name. The line will add the file flvid.log to your /include/settings/ folder with more video conversion details.

I hope this helps.

~zelda180~
www.80TOONS.com