and the .mpg and the .mov and the .mp4 and the .rm.
or at least link me to a website that can explain all of them?
also how can i change a .avi video to a .mpeg video?or anything that can play on my windows media player?
everytime i try to play an .avi video on the windows media player it says "cannot find codecs needed to play video" and i need help.

The different file sendings refer to different file types (in connection to their compression).
If you use the free VLC player, I guess, you won't have to worry anymore about those differences, as the player will play almost all media files. It has built-in codecs.
Download it for free here:
http://www.videolan.org/vlc/

To change one file format to another in regard to AVI and MPEG (or MPG) you need a converter. I use Winavi converter or TMPGEn converter.

__________________

"Never Argue With An Idiot. They Will Drag You Down To Their Level, Then Beat You With Experience"

rm is real media file. http://en.wikipedia.org/wiki/RealMedia

mpg is mpeg which can be anything from mpeg 1-4 (there's many more but they're not on the market yet) http://en.wikipedia.org/wiki/Mpeg / http://abma.x-maru.org/faq/annotated/formats.mpg.php

avi = Audio Video Interleave. It is a special case of the RIFF (Resource Interchange File Format). AVI is defined by Microsoft. AVI is the most common format for audio/video data on the PC. AVI is an example of a de facto (by fact) standard. http://en.wikipedia.org/wiki/AVI


We normally recommend VLC - (click on link) _ (choose nearest mirror site) as it is a free player with in-built codecs & can play most files except realmedia files.

BTW MPlayer is very similar to VLC but it can play RM files. There's one or 2 things the other player can't do compared to each other.

Well if I'm that slow at replying I'm going to bed!!! lol

thank you very much!!!!!
your smart.........er than me!!!.....uuummm.....thanks!

That was 5 min. LOTR........ ......but it's okay, considering the amount of info you packed into the answer.....

__________________

"Never Argue With An Idiot. They Will Drag You Down To Their Level, Then Beat You With Experience"