capturing size

[maxone]

hi guys,

was wondering what is the best way of capturing, frame size, 29.97 or 23.97, uncrompressed or is mjpeg alright?


HELP!

[GenkaNT]

DVD-Video can comprise either PAL/SECAM or NTSC video material at frame rates of 24, 25 or 30 fps.
PAL/SECAM video uses a frame rate of 25 fps (frames per second). Source video material will be at this frame rate. Film material will have a frame rate of 24 fps and is usually played back at 25fps (to avoid frame rate conversion) and the audio is pitch corrected before the encoding begins.

NTSC video uses a frame rate of 30 (actually 29.97) fps which is identical to NTSC video material. Film material is usually converted from 24 to 30 fps by a
'3/2 pulldown' whereby frames are repeated to convert the 24fps film to 30fps video. However this is not necessary for DVD since the player can carry out the frame rate conversion. Therefore the video can be stored on disc at 24fps and displayed by the player at 30 fps. The encoder embeds MPEG-2 repeat_first_field flags into the video stream to make the decoder perform 3/2 pulldown.

The result is that both PAL and NTSC versions of the same movie will comprise the same number of frames but as PAL frames are larger than NTSC frames they are likely to require more data rate for the same quality.

Info from: http://www.discusa.com/dvd/dvdvideo/dvdv_vid3.htm