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cheetah
21st September 2004, 10:07
I have had this problem with a very few DVDs so far.
I have copied close to 200 DVDs without error yet in that process there has been about three that have simply not been recognized. At all.
The computer simply thinks there is No Disc inserted. And yet the same DVD will play in my stand alone DVD player.

Has anyone experienced this?
Right now it is doing it with the original "Dune" DVD.
Any hints, PLEASE POST...
Thanks...

Wilbert
21st September 2004, 12:08
A hint from me. Please use an appropriate title next time, and please don't cross post!

cypher_soundz
21st September 2004, 12:15
Have you tried using a different dvd drive?
try removing the dvd drive from device manager and the 2ndry IDE controller and restarting. maybe a corrupt driver?
Are the disks scratched/dirty?
Regards
Cyph

Mug Funky
21st September 2004, 15:27
i have a lite-on that does this at the drop of a hat - any slight hardware change anywhere in the system will make it stop reading certain things, apparently at random

one day it wouldn't read CD-RW, sometimes it's DVD-R, sometimes it's DVD+R, sometimes it reads everything but commercially pressed DVDs. one time it couldn't eject.

in all cases, simply turning off the machine, unplug, reboot, turn off, replug, reboot solved it's problems. don't ask me why.

in any case, you can try that and see if it's successful.
DVD media is currently still extremely unstable and unreliable. the only thing you can (usually) be sure of is that the data IS on the disc, you just have to find a way of reading it.

Didée
21st September 2004, 15:44
Mug Funky, considering other posts from you as well (avisynth) ... I get the impression your rig is just behaving down to its whim. Perhaps you should make clear which of you both is sitting in the drivers seat :D

fccHandler
21st September 2004, 16:02
I have a Pioneer DVD-ROM that started doing this after its first year. My guess is it has a heat problem, because sometimes discs would come out hot to the touch. This year it started refusing to read some discs, even brand new ones. Eject, Insert, Reboot, and so on would work sometimes. About 6 months later now the thing won't read ANY discs, and I think it's completely dead.

Heat is bad. :(

Mug Funky
21st September 2004, 16:09
@ didee:

you don't know how right you are there... it's kinda a love-hate thing. i've had the same install of win2k running since i got this rig in early 2000. only defragged twice in that time.

that said, it's running substantially faster than a lot of my friends' machines which have a lot more clock speed (1500 vs 733). i can't say exactly why this is, but i consider the odd access violation to be not much of a problem.

the only crashes i've had on this machine have been hardware-related (PCI cards jumping out of the slots because i forgot to screw them in, etc).

the lite-on burner is on loan from my brother, so it's not properly assimilated into the system :)

i see this computer as like my old datsun - not pretty, has it's quirks, but will run on the smell of an oily rag and never breaks down in a manner i can't handle (once i ran out of petrol and simply yelling at the fuel cap gave it enough motivation to make it to the next station).

[edit - moved an apostrophe to it's correct place]

Didée
21st September 2004, 16:54
Mug Funky:

Yeah. I think I know that kind of computers - and that kind of cars as well :)
And imagine a world without "access violations" - wouldn't there be missing something?

by fcchandler
Heat is bad.
Sure it is.

But what is just as bad, are the cheap plastic lenses that are used nowadys almost exclusively in optical devices. Their lifespan is limited from the very start, and won't exactly grow in the presence of heat.

I own a Yamaha CD player, that I buyed back in 1984. The device is up and running, and is in best shape (exept for the tray, which runs a little hooky) but never needed any service except for blowing out the dust from time to time. It uses a _glass_ lense...
I bet some money that no actual consumer player, CD or DVD, will last 20 years and still be fully functional. I'd rather expect 2 years than 20.

Mug Funky
21st September 2004, 17:07
my old Yamaha CD-29 (one of the first ones in a black finish) tends not to play new CDs all that well.

that's probably because EMI australia use about the worst replication plant in the history of CDs (D.A.T.A... australian bods. if you see their logo, run like hell). it also mutes for about 100ms on the corrupt bits in CDS200 protected discs. it's been decomissioned in favour of an el-cheapo hyundai DVD player which i keep because it'll play DTS-encoded CDs. i suspect the yamaha will out-live it...

Doobie
21st September 2004, 17:29
Originally posted by fccHandler
I have a Pioneer DVD-ROM that started doing this after its first year.

My burners don't see to last a very long time. After about a year I start getting disks that have nothing readable on them, even though no errors are reported during burning, and then I get a new burner. I think it takes a powerful laser to burn a CD so they probably start going bad much sooner than a reading laser.

theReal
22nd September 2004, 02:50
I bet some money that no actual consumer player, CD or DVD, will last 20 years and still be fully functional. I'd rather expect 2 years than 20.I have an old CD player that is almost 20 years old and it's still functional (the lens has only been cleaned once about 5 years ago) :)

Didée
22nd September 2004, 09:41
Originally posted by theReal
I have an old CD player that is almost 20 years old
And so is mine. By that time, plastic lenses were not good enough to survive the device's warranty period, so they had to use glass lenses.
BTW, with "consumer player", I was aiming for devices in the usual low/medium-low price segment, which make the majority of the market. Of course you can get proper and reliable stuff even today. But as most people, I'm hardly considering to spend 1000 €/$ just for a disc player - and the really recommendable devices are above 2000 €/$ ...

shevegen
22nd September 2004, 11:22
Wow 20 years is not bad
Mine oldest one is 8 years and still working.
built for eternity huh :>

trolltuning
22nd September 2004, 14:03
I had one disk that I purchased from a person who makes limited run videos -so they are burnt not pressed. It always played in stand-alone but it stopped playing on my computer (Windows would not recognize it). I went into DOS- sure enough it was there. I x-copied it to my harddrive. Problem solved.