Ok I made this DVD which has several tv shows/movies in it, and it was all authored in DVD-Lab Pro v188.8.131.52. When I was happy with the authoring, I compiled the DVD which gave me the audio_ts and video_ts folers. When I load the video_ts in Nero and order to start the burn process, I get warnings/errors in Nero: -File size is not a multiple of a logical block size (2kb) -DVD-video files reallocation failed Then nero prompts: The resulting dvd might be unplayable. Do you want to continue? I figured might try it anyway, burned the DVD and tried it on my DVD and it worked just fine, but my main concern is that it may not play at all on older DVD's and such, I want maximum compatibility for my DVD's. Am I freaking out or am I doing something wrong in the authoring process?