Posted 04 June 2007 - 11:35 AM
Perceptual 'quality' ? Anytime you compress video, the quality will be less even though 'perceptually' the quality may appear the same or close to the original. Perceived quality will also depend on other factors like resolution and viewing size. If you reduce the image to 320X240 and then view it on a 60" widescreen TV, the quality will look terrible. Take the same DVD and view it on a 25" CRT TV and it would look fine.
For 'best' quality and less size, I would keep the resolution at 720X480 (NTSC) and use MPEG4 or DivX compression for PC playback. You can play with compression levels to create smaller files.
Phenom X4 965 3.4Ghz, 4gig DDR3, LG 47" 3D TV, Hitachi 1TB HD, Seagate 500GB, LiteOn iHBS112 Bluray, TSSTCorp SH-222A DVD, ATI HD3300 IGP, VIA HiDef audio with Logitech Z5500 THX certified 5.1 speakers, Epson 4490 scanner, Canon 9000Pro MarkII printer, Sharp AL1551CS laser printer/copier, Sony TRV740 8mm digital, Canon HV20 HDV camcorder and Fuji S7000 for still photos, Win7 Home Premium
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System 2: HP DV7 laptop, Turion II Dual Core 2.4Ghz, 4GB RAM, 640GB hard drive, ATI Mobility HD4650, ATI HiDef Audio, Windows 7 Home Premium 64bit.
Gary Russell
TNUSA