ND-3500AG writing speed problems on external usb case



I often read about the writing speed problems with the ND-3500 drives, and I figured out that we have to choose the right media.
In my case, I have the good media I think. NeroInfo is showing me that:

Manufacturer : Ricoh
Disc Type : DVD+R
Usage : General
Recording Layer : -
Recording Speed : 4 X - 16 X
Capacity : 4.38 GB
4700375040 Bytes
Additional Capacity : -
Overburn Capacity : -

I’m using NERO an the lastet firmware of Liggy And Dee’s ND-3500 firmwares V2 Beta 3.

If I try to burn a DVD+R with 4,5 GB the drive need 15 minutes to burn it.

I really could not imagine why the drive speeds down shortly after start burning. When starting to burn the drive speeds up to 16X i thing because its very noisy. After this, it speeds down to 4X I think and then it burns the whole media with this speed. The Buffer is always on 98%, only 3times it goes down and up again.

Why in heaven this happens?

I got really good hardware and did not have any problems at any time.

Is it possible that my USB2.0 external case (Cypress Chipset), where the drive is attached to, is working to slow?

Any ideas would be great!



You can see the exact speed the dvd is burned if you apply the registry speedhack for Nero (using a DWORD “ShowSingleRecorderSpeed” with a value of 1 in \HKEY_CURRENT_USER\Software\Ahead\Nero - Burning Rom\Recorder), or by using for instance DVD Decrypter.
Your USB2 enclosure has to be fast enough for 16x writing. My Plextor enclosure did not go faster than 4x.


What type of enclosure is it? Do you know what chipset is has onboard? How are you connected to your computer (USB or Firewire)?

You should read “The big external enclosures thread” found here:


Based on input from other users, it would appear that the best enclosure uses the Prolific Chipset, and is connected by Firewire, not USB2.0. No one has been able to get 16X burns using a USB2.0 connection.


The enclosure is called Techsolo TMR-5260. Its a USB2.0 enclosure with Cypress chipset.

Take a look here: http://www.techsolo.net/de/tmr-5260.htm

Also this enclosure is avaiable together with a ND-3500:

So it has to work I think.


Here is a quote from dishinit in that thread I referenced:

“At 23 MB/s over firewire you can burn at 16X with the right media. At 22 MB/s over USB, your are just shy of that 16X ability so stick to 12X burns.
12X usually gives me better quality burns on the same 16X capable media, and is sometimes as fast as a 16X burn.”

Do a burst rate test in CD-DVD Speed to see what your drive can do in this enclosure.