hi, i'm new to all this, so please bear with me! i'm using dvdflick to burn some videos, and i encountered a problem with one batch of videos. i burned 10 .mkv format videos with embedded subtitles (1.75GB all in all). when i tested the finished disc, i found out that the 10th (last) video didn't include the subtitles. all the other videos had no such problem. i did double-check, and can confirm that the original .mkv file did have subtitles on it. i just want to know how this can happen, and if you guys can give me some tips on how to avoid this happening again. they were embedded subtitles, i did not have to add them separately. does this have to do file size, software glitch, etc? by the way, what is the maximum file size allowable that can be burned on a dvd-r?? thanks for the help!