gman_g Posted July 21, 2004 Report Share Posted July 21, 2004 I forgot to ask this as a secondary question from my last post. Do you think it's possible for Sony to introduce HI MD discs greater than the current 1 Gig? Reason I ask is it would really nice to have a recording in PCM that can exceed the current 1 and 28 minutes. I know many tapers tape shows that run for at least 2 hours. The idea of having a lossless recording without having to change discs would be ideal. George Quote Link to comment Share on other sites More sharing options...
Sbetsho Posted July 21, 2004 Report Share Posted July 21, 2004 it is very well possible, and what I have heard, they already managed to make 48GB minidisc, but don't expect it to come anywhere soon as it would be too expensive or something. Quote Link to comment Share on other sites More sharing options...
dex Otaku Posted July 21, 2004 Report Share Posted July 21, 2004 The density limit for the MO technology they're using is around 4.7GB on a 62mm disc. See http://www.minidisc.org/research.html Quote Link to comment Share on other sites More sharing options...
Christopher Posted July 21, 2004 Report Share Posted July 21, 2004 Another good page: http://forums.minidisc.org/viewtopic.php?t=3979 I think that if we were to go further, discs like the ones we employ now with Hi-MD will be readable by future units + higher densities will require newer Hi-MD units. Is it possible to release a 5gb Hi-MD disc for use with the equipments available today? Maybe, but if you're writing at USB 1.1 will you really want it? The true barrier is the writing speeds of the process. Once they tackle that, then the limits no longer exist. They would have to release a new unit [with a laser capable of writing at a lower laser wavelength] to be compatible with anything like 48gb. What do I envision? A unit in the future that will not read existing MD discs, but Hi-MD discs and beyond. Quote Link to comment Share on other sites More sharing options...
Rumz Posted July 21, 2004 Report Share Posted July 21, 2004 I imagine the disc read time would increase as well with increased disc capacity. It already takes fairly long from turning a Hi-MD player on to actually listening to it... It'll be interesting to see what improvements can be made to the Hi-MD format. Quote Link to comment Share on other sites More sharing options...
mAjEsTiC Posted July 22, 2004 Report Share Posted July 22, 2004 yeh i agree...wonder wot the 2nd gen of Hi-MD's have in store for us... Quote Link to comment Share on other sites More sharing options...
Spare Tire Posted July 23, 2004 Report Share Posted July 23, 2004 I have a question, DVDs are capable of reading CDs, is it by using the same head or do they have multiple heads in those readers? Perhaps you can still read a lower wavelength MD with a new generation higher wavelength MD (which you can also combine with the actual technology of "magnification" they use in Hi-MDs). Quote Link to comment Share on other sites More sharing options...
crazeybt1 Posted July 24, 2004 Report Share Posted July 24, 2004 you know that's a good question and i would like to believe so yet i'm not sure because once i was checking this sony portable DVD player and the unit had 2 different lens one appearing red in color and the other had a blue tint to it so who knows........ Quote Link to comment Share on other sites More sharing options...
highlandsun Posted July 24, 2004 Report Share Posted July 24, 2004 Yes it's possible, with varying degrees of difficulty. When you look at consumer DVD players that also play audio CDs, some companies use two separate lasers for the purpose, some do it all with one. Doing it all with one is a big compromise, and you're betting that your software/error corection codes can make up the difference. Quote Link to comment Share on other sites More sharing options...
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