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Windows 7: Copy from DVD-R is slow with multiple folders?

08 May 2010   #1
spacedog

windows 7 Ultimate x64
 
 
Copy from DVD-R is slow with multiple folders?

OK....so I'm seeing some very poor performance and strange issues here.

I have a DVD-R with 3 folders with each folder having about 50 pictures (each picture is about 20mb). If I open the disc and try to copy all three folder onto my HDD, you can hear the drive head seeking like crazy and I get maybe 2MB/S transfer.

If I cancel the copy the drive continues to spin and seek for quite some time even though nothing is being done? As a matter of fact, I pretty much have to eject the DVD to get the drive to stop spinning/seeking.

So...if I eject it, then reinsert it the drive is fine.

NOW...if I try and copy just one folder to my HDD, rather than selecting all 3 at the same time, the drive doesn't seek like crazy and I get my normal sustained 15-18MB/S transfer.

I have tested this on my laptop, and on another desktop computer and found the issue to be replicated on all three systems (all have different CPUs, HDDs, and DVD drives)...which are all on Win7.

So what is going on here?


My System SpecsSystem Spec
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08 May 2010   #2
logicearth

Windows 10 Pro (x64)
 
 

If I had to guess...the files on the disk are physically in different sections so the head has to move often instead of in a more linear fashion. When you select all there folders the contents are probably getting shuffled around in the queue.
My System SpecsSystem Spec
08 May 2010   #3
spacedog

windows 7 Ultimate x64
 
 

but why does it not shuffle all the files in the one folder then?

I suspect it's trying to do some foolish thing like copy multiple files at the same time....either way this is a pretty awful problem....i'm just wondering if it's some obscure 'feature' causing this and, if so, how do I turn it off?
My System SpecsSystem Spec
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08 May 2010   #4
patio

Vista Ultimate X64/ Windows 7 Dual-boot
 
 

My System SpecsSystem Spec
08 May 2010   #5
Hannibal001

windows 7 Ultimate 64 Bit
 
 

This TeraCopy looks interesting. Might try it soon. If you care to try it, Total Commander is the shit,but be VERY careful w/ it as it WILL (depending on version and settings) show hidden and system files which if you delete will be gone into recycle bin and bad things happen, MAKE A START UP RECOVERY DISK FIRST!!
My System SpecsSystem Spec
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 Copy from DVD-R is slow with multiple folders?




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