The size of the AVI depends on the compressor used in it's creation. A two pass compression with XVID can easily result in a file size one fifth that of a good quality MPEG2. But this compression takes time and computer resources to do. The Panasonic DV codec uses a much lower compression rate than MPEG2 to preserve quality and still be fast enough to use in realtime. DV is the compression of choice for almost all video editing today. Multiple recompressions with it will only start to show distortion artifacts at the fifth pass. For TV work, 10 pass results are still good enough to use.
Originally Posted by Nikosony
Due to new chip designs, modern DVD players can play/convert pal to ntsc and vice versa in realtime. Most PC softwre DVD players can too. Older DVD players will fall over if the wrong type DVD is put in.
A question for Crusty, can you playback PAL videos and DVD's on your NTSC TV, DVD player and VCR and have the picture and sound come out alright? I was just wondering because if we over here on this side of the Atlantic can playback NTSC material on our PAL systems, then is there any point in going to the trouble of making two copies of our discs or tapes, one for PAL and one for NTSC?
VCRs are an even worse problem. Few people are buying new VCRs so most have old machines that won't convert pal/ntsc.
So, in short, your mileage may vary. If your audience is upscale yuppies, then one format is fine. But if you hope to sell to old timers, you will still need both versions.
Fav quote - "Experience is whatcha don't get 'till ya don't need it no more."
System - Athlon 1.4GHz, Win98, Hauppauge PVR250 receiver and compressor.
Software -Magix Movie Edit Pro 10, Nero 6 + NeroVision Express, Moho 4.61, PSP 8.1, Bryce, Quicktime 6.52 pro, Goldwave 5, DVD-Lab.
Cameras - Panasonic GS9, Canon ES8400V, Canon EOS D20 and Canon A70