[QUOTE=franz99;2586066]The 12x speed is CAV (a constant angular speed) and not CLV (constant linear speed).
This (linear) [B]speed of 12x people talk about all the time is only reached at the [U]very[/U] [U]end[/U] of the burn[/B] towards the edge of the disc !
[U]Note[/U]: these 12x and 16x figures refer to a BD format transfer rate and not to the figures of transfer used for the DVD transfer rate
You will never get a CLV speed of 12x from the [U]beginning[/U] of burn (near the center of a BD-R) disc simply because the rotation (RPM) would be too far too high for the polycarbonate structure and the disc beeing physically destroyed (and behaving like a flying saucer !)
[B]You will [U]also[/U] never get a 16x linear speed towards the [U]end[/U] of a BD burn [/B]because of the same reason:
the RPM would be too high and the polycabornate disc “get satellized”
So even waiting for a 16x linear speed (approched anyway only at the very end of the burn towrds the edge of the BD disc) is just hopeless !
[B]The benefit in [U]seconds[/U] for the total burning time[/B] compared to a 12x linear speed towards the end would anyway be very low[/QUOTE]
Exactly as you say never does i drive get to full write speed except at the end of the disc.
4x speed writing must take forever and an age for 25 gb disc to complete. For me would take forever that i would also need to verify everything has been written correctly. This i could do and have done always in the past with cd and dvd writing and verifying at high speed only. Mainly all data discs but also a few dvd video and they playback even today without problems. All data discs cd and dvd are still readable no matter their age.
Would like to make my collection of cd and dvd discs much smaller. It would be nice if 50 dvd’s could become 2 discs (100 gb discs).
Its a shame all that was promised for these high capacity burners has never materialized yet. Maybe just sales tactics to get people to buy into a dead market, well seems it is dead.
Something is amiss with BD its like the cartel behind it is stalling it for some reason. Well this is the feeling i have. Yes look forward to newer and better such as 100 gb or greater storage capacity for optical discs.
Meanwhile i have choices to make and is not good, hasn’t been for years now. Buy dvd discs the market has long gone stale for them and all is available in mid range is tat. Low price discs are rubbish and buying high priced discs is a joke unneeded. Then there is hdd which really is still no use for long term storage. Sdd is not a reality and seems to have stalled. A good idea but not well backed to bring lower prices and so high capacity drives fast enough. If continues same path doomed to fail.
Full circle again still haven’t bought bland dvd disc in years or plan to. Sure need somewhere to put data as hdd is a bad place for it untrustworthy.
Still wait for a new break through that is a good storage medium or discs that are 100 gb or more.
Have spent a while looking at this, and still waiting. While at the same time i have nearly given up on computers, net use mainly now. Maybe that is what the BD consortium planned to do, makes sense when you think about it.
Ah maybe this could help me, will have to look up which drives and cost fro drive and media.