I have been able to export to disc using PS21 (create the disc image as a VIDEO_TS folder); out of habit I have never used Studio's built-in disc-burning (in any version) as I always like to inspect the created image before burning. I have some home-made disc menus and, depending on the length of the button caption text, Studio sometimes has a strange idea of which buttons are "adjacent" when using the DVD player's arrow keys to move around the menu (if I find anything that "isn't logical" I use PgcEdit to put it right...). Then I burn with ImgBurn, and create an ISO image too to keep as a backup.
Bob keen:The only inexplicable thing is that if I had imported my raw footage MP4 clips into S19, it would jerk at each of the joins (four clips per half because of FAT 32). However, opening the project after butting them together in S21 means that they play fine. I don't understand why that should be. The clips still do not look quite right as the icon at the start of each clip is green rather than a picture.
The "funnies" at the joins between files are a known issue that can occur with any file-based camera - some editors are better than others at handling it...
The camera shoots as a continuous "transport stream" (succession of frames), As you shoot, the capture "container" (for my AVCHD camcorders it's a .MTS file) fills up and when it reaches the 4GB limit for FAT32 the camera closes that one and opens a new one. However, when it does so, it doesn't take account of where the "key frames" (H.264 equivalent of MPEG-2 I-frames) are in the video stream, and can put the "key frame" in the first file and subsequent frames that depend on it into the next file. If the editing program isn't clever enough to work out that the two successive files are related and came from the same continuous shoot, it thinks that the second file has a corrupt beginning, with some junk before the first "key frame" (and probably just throws it away)! The green poster frame you see in PS21 might be because PS21 doesn't fully understand that the subsequent files are continuations of the first one (and tries to make the thumbnail from the first frame in the file - which may not contain a whole frame's worth of information).
Another trick to work around the "continuous shoot split into multiple files" issue (I have used in Studio 14 + later versions) is to "stitch" the files together using a copy/b command in a DOS command prompt - for example:
copy/b 00000.MTS+00001.MTS+00002.MTS BigFile.MTS
Regards,
Richard