tedd wrote: > I'll investigate what you suggest. I definitely think it's the right way to go. sox can also convert from mp3 to wav etc. as per Clive's suggestions too, so if you can use lame from the command line via PHP, there is no reason not to just use sox instead. > It was by accident that I found one could combine mp3 files in such a > manner. I combined many more than just two. Somehow, the redundant > headers in the resultant file are not noticeably detrimental to the > overall assembled sound. Go figure. This is a result of the frame based approach to the file format. As a nifty trick I've told to people before you can take several MPEG video files that have been split from a single recorded source, such that they are all the same resolution/bit rate etc. Put all the files one by one into a .zip file (e.g. via winzip etc,) with zero compression. Take the resultant .zip file and rename it to .mpeg and play it as usual et viola, uninterrupted video!!! Same applies to mp3 hence how your trick works. The players will just skip past the inappropriate frames quite happily (tho' like i say, it may be more problematic WRT differing bit-rates/channels etc.). Col -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php