Mencoder Basics

http://www.mplayerhq.hu/DOCS/tech/encoding-tips.txt

NTSC

Spec Resolution Frame rate Video Audio Aspect
NTSC Full 720x480 30000/1001 = 29.97
NTSC DVD 720x480 30000/1001 or 24000/1001 MPEG-2 @9800kbps AC3/PCM 48kHz @1536kbps 4:3, 16:9
NTSC DVD 704x480, 352x480, 352x240 30000/1001 or 24000/1001 MPEG-2 @9800kbps AC3/PCM 48kHz @1536kbps 4:3
NTSC DVD 352x240 30000/1001 or 24000/1001 MPEG-1 @1856kbps AC3/PCM 48kHz @1536kbps 4:3, 16:9
NTSC SVCD 480x480 30000/1001 MPEG-2 @2600kbps MP2 44.1kHz @384kbps 4:3
PAL | 768x576 25

Hardware MP4 Players

LCD
220 x 176 224 x 176 @19/18/15/11 fps
224 x 128 @25/16fps
Notes
1. starts to lose image sharpness above 320 x 240.

RealVideo starts to lose image sharpness above 320 x 240.

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