Slow dvd read speed in windows 7

I rarely flash any hardware especially any optical drives since they are simply easier to replace IF they don't seem upto par! like one model replaced on the present build that suddenly started making grinding sounds after it would no longer allow booting from any disk. Not worth the time fussing with any flashing.

Lately someone experienced even trashed his own main board with a bad flash! It shows how easy that can happen to anyone even when you take precautions. The method for the board here still sees an EZ Flash while the tool you can download is still the old type dos rename bin type. awdflash at own risk!

What you are seeing there with the larger files being copied to the hard drive is similar to what is seen when going to burn a data or video dvd. But instead of a good load being placed on the cpu it's on the main explorer.exe process in Windows.

Instead of cpu time for feeding data through the lazer on the drive in the write process this is a reverse copy/transfer tying up W.Explorer for the most part.

Actually this is quite normal to see since HD to HD transfers are generally seen on the same bus like either two ide or two sata HDs with read/write heads while the optical drive uses a lazer lens to read from removable media then to the ide or sata bus. A two step rather then one step process overall.

One reason I run two storage drives here is save on time as well as backup the backup simply by copying or moving files from one drive to the next over the slower process of reading from removable sources. A few periodic data dvds are seen here to avoid a mountain of disks to go through!

sparky123 said:

To disable Remote Differential Compression
1. Click Start>control panel>programs>turn windows features on or off
2. Uncheck "Remote Differential Compression" and click ok.
3. Restart the computer you should see an improved performance with copying files.

Sorry, but Remote Differential Compression is for network services, and is only used by those services that make use of it. Only Offline Files does at this point and time. You will not see any improvement in performance concerning files.

Further more, to the OP. I don't know where you get the 1 GB takes 1 minute observation but pushing 1 GB from a optical disk to an HDD in 1 minute is not realistic. Optic drives are so slow compared to everything else, they can barely fill a SATA 1 connection. It also depends greatly on how the file is written to the disc.