Andrew, [EMAIL PROTECTED] said: >I think you might be confusing things a bit here. The >DVD-ROM/+/-R/RW drive itself doesn't have any logic that _decodes_ >DVDs. That is done completely by the host computer (either with >hardware assistance or totally in software). > >The Lombard doesn't have the horsepower to decode DVDs in software, >so there's a CardBus card (actually a combo zoomed video card, IIRC) >that does the decoding in hardware. Without that card, you can't >play DVDs in OS 9. I don't have any experience with OS X software >DVD playback, but the CardBus card isn't supported in OS X.
Ehum, I thought I was saying this precisely. As the Cardbus card isn't used as it is unsupported under OS X, then what is left is software decoding. >There's sort of a misnomer here. The higher end laptops do software >decoding, but they hand a large part of the work off to the video >card. So while there's no true MPEG2 hardware decoder on the video >card, the video card is still doing a lot of work and not leaving it >all for the CPU. I think this must not be 100% correct as I have no problem looking at a DVD Disc in my Powerbook G4/400 without dropped frames, but for DivX (Mpeg4, so may ask for more horsepower or SVCD (Mpeg 2 I think?) I have to adjust the software to drop frames to maintain audio/video synch. I though the difference was due to that I had DVD mpeg 2 hardware decoding builtin? To try and prove my point I ripped the trailer for "24hour party people" that can show no problem from the disc at full screen, but the raw Mpeg 2 movie loses time with audio, unless you drop frames. You think something else is going on than mpeg 2 hardware decoding? If what you say is true, why can't common software utilize the video card? -- G-Books is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- Check our web site for refurbished PowerBooks | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> G-Books list info: <http://lowendmac.com/lists/g-books.html> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/g-books%40mail.maclaunch.com/> --------------------------------------------------------------- >The Think Different Store http://www.ThinkDifferentStore.com ---------------------------------------------------------------
