4853 = DVD Quality Min bitrate?

[snapware]

The Bitrate Calculator says a bitrate of 4853 will yield a 2 hour dvd.

DVDs are made to fit 2 hours of video, correct?

so does that mean 4853 or higher will always yield excellent quality video?

[jimmalenko]

No. No correlation at all, really.

DVDs can be any running time, and it's just arbitrary marketing speak that lists them as 120 minute discs. You can push up to about 7 hours on a DVD if VCD quality is your thing, or alternatively, many here swear by sticking to 1 hour's worth using CBR 8000.

The content contributes to the suitability of the bitrate also. For example, to retain the same quality, a high action kung fu / martial arts movie may require far higher average bitrates than a soppy "talking heads" drama for example.

[whitejremiah]

or even more to an extreme, a film with very high action sequences, particularly explosions, avalanches, ect, that type of thing will REALLY push up the needed bitrates...or racing scenes in movies....also a little note too, animated stuff GENERALLY requires a lower bitrate (im not speaking of the CG animated stuff either, as i havent dealt with that enough to know what that does bitrate wise)