if anyone has any suggestions for settings for converting .VRO files, please share. I'm interested in picture quality and being able to import into iMovie.
The Following compression formats will produce the highest quality (and largest files):
1) DV/DV (DV video with DV audio as using the "Export to DV..." option),
2) DV/AIFF (DV video with AIFF linear PCM audio as using either the "Export to QuickTime..." or "Export to Other Formats..." option),
3) AIC/Uncompressed (Apple Intermediate Codec video with uncopressed audio using the "Export to QuickTime..." option), or
4) AIC/AIFF (AIC video with AIFF audio using the "Export to Other Formats..." option).
The following video compression formats should produce slightly lower quality with files on the order half the size (depending on "Quality" setting) with any compatible audio and possibly "thumbnail"/import more quickly to iMovie '08:
1) Motion-JPEG (using either the "Export to QuickTime..." or "Export to Other Formats..." option) or
2) Photo-JPEG (using either the "Export to QuickTime..." or "Export to Other Formats..." option).
The following compression formats can produce a wide range of quality/file sizes depending on the data rates used (i.e., limiting the data rates to low values produce low quality files in a very small package while unlimited data rates may approach the quality of DV or AIC files but with similar file sizes):
1) MPEG-4/AAC (using either the "Export to QuickTime..." or "Export to Other Formats..." option) or
2) H.264/AAC ((using either the "Export to QuickTime..." or "Export to Other Formats..." option).
As to specific settings, use settings based on your source file. For instance, if you are startting with an NTSC recording the use the NTSC standard for your conversion. If you have the option to shoot in a progressive mode and used it, the use the progressive mode for your conversion -- otherwise you would normally leave it interlaced unless your target use requires deinterlaced files. Normally the DV(25) setting is used, but any of the settings will work. (I.e., DVCPRO50 will double the video video data rate but not change really improve the quality in terms of things like resolution.) If you note audio drift, you may try re-sampling the audio. If changing an NTSC standard file to PAL, you would likely want to used the "Blend Frames" option. If the files have to be compatible with ancient versions of iMovie, use the "Split into Segments" option. If cropping (especially vertically), use the "Better Downscaling" option. In short, read the documentation and use the settings that might apply to your particular conversion needs. My personal advice is to make as few changes as possible -- i.e., match the settings of the source file as close as possible.
