You have to convert it to MPEG. You can go to
http://www.vcdhelp.com and get TMPGEnc, as well as read the guide on how to do it. Chances are that the movie is DivX and it was meant to be played on the PC, which is why it is only 700MB. BTW, CD-R's can handle more then 700MB, it just depends on the compression. But, I would recommend not converting it to MPEG because the audio will most likely be out of synch. In the future, make sure they are MPEG/MPEG2 so you can just burn it as a VCD/SVCD. They usually say it in title. BTW, KAZAA is actually better then MIRC, because every noob and his grandma uses IRC to get files. It's just too slow. USe the newsgroups.