cat oddity?

[robinmcf at altern.org]

On 22 Aug, 2007, at 12:02 am, Daniel Hazelbaker wrote:

> I believe ffmpegX will join multiple .mpg files together.
while ffmpegX is a seriously useful piece of software it will only join 
2 files at a time and being lazy I was hoping to use a perl script to 
do some batch processing - I guess at this point compiling the ffmpeg 
executable would be an option


>
> On Aug 21, 2007, at 7:36 AM, Derek Chesterfield wrote:
>
>> I'm pretty sure that cat can only be used to join PARTs of a single 
>> MPEG together. E.g. someone has a huge file, and splits it into 
>> multiple files, then cat can join them. But if each individual file 
>> is a discrete movie, then that's completely different.

hmmm that probably is what I'm coming up against - bizarrely though 
I've seen webpages advocating cat for joining multiple avi files 
together and handing off the resultant file to mencoder to straighten 
out.