CompuServe Messages

Gus, >>As far as image quality goes, or amount of information present in order to reproduce an image, it has less than what something like a PAR unit would display. Or a laser disk for that matter. Well Gus .. I guess you expected you'd get some mail on that one <g> As far as I understand (and I do stand to be corrected .. if appropriate) JPEG, like D1 is 4:2:2. The difference being that JPEG is further compressed (thru a Fourier Transform based algo) to produce a further reduction in bandwidth. Thus, D1 is the best that JPEG at "0" q factor can duplicate. Now the PAR system can bare sustain 3 MB/sec thruput which equate to about 18-20 q-factor. The MAX system (using parrallel SCSI HDD's) can sustain 7 MB/sec .. about 7-9 q-factor … which even for a still image is visually lossless. Now at that point, we are equivalent to D1. I do agree that a laser disk will have higher quality that all being discussed. Again, if I've made an error is arguement, please feel free to "slam" away <g> Ang