HD Content

[Spam Butterfly]

It's worth remembering that at the 100% quality setting Photo-Jpeg has 4:4:4 colour sampling in RGB 8 bit. At this level, it's very hard going on the processor to decode multiple streams of this... ;-) However, it is a fantastic and very efficient offline storage method. Unless you like storing your content in Animation Codec (which eats hard drive space), then it's a good bet.

Photo-Jpeg uses DCT intraframe compression technology, and therefore does not suffer from the problems that interframe compression based codecs (H264, Sorenson, Mpeg-2 etc) do.

Hugh
Altered State Ltd

[samsc]

photojpeg uses 4:4:4 sampling at every compression rate.

what dct algorithms do is throw away higher frequency information -

http://en.wikipedia.org/wiki/Jpeg
http://en.wikipedia.org/wiki/Discrete_cosine_transform

the sampling will be quite obscure and irrelevant to most peoples understanding.