Resolved mouting/unmounting issues external DVD-RW

[stormbind]

Hi,

How can I burn DVD.iso to a DVD using my Mac?

I'm having difficulty using a slim external Samsung TSST (Toshiba-Samsung-Storage-Technology) Super WriteMaster DVD Writer over USB 2.0 on my MacBook. I'm using Disk Utility to demonstrate what happens.

Simple example of what does work..

[b]Disk Utility, Use Case: Insert a CD[/b]
O TSSTcorp CDDVDW SE-SO84D
   O CD_NAME

[b]Disk Utility, Use Case: Eject a CD[/b]
O TSSTcorp CDDVDW SE-S084D

The following does not work..

[b]Disk Utility, Use Case: Insert blank DVD-RW[/b]
O TSSTcorp CDDVDW SE-SO84D

[b]Disk Utility, Use Case: Drag & Drop "DVD.iso"[/b]
O TSSTcorp CDDVDW SE-SO84D
----------------------------------------------------------
[] DVD.iso

[b]Disk Utility, Use Case: Select "DVD.iso" and press "Burn" icon[/b]
O TSSTcorp CDDVDW SE-SO84D
----------------------------------------------------------
[] DVD.iso
----------------------------------------------------------
  Message: Burn in Disk [TSSTcorp CDDVDW SE-SO84D]
                 [Eject] [Cancel]  [Burn*]

[b]Disk Utility, Use Case: Press "Burn" button[/b]
[] DVD.iso
----------------------------------------------------------
  Message: Unable to burn "DVD.iso". (The device is not accessible, probably because it was removed.)

[b]Disk Utility, Use Case: Click "OK"[/b]
O TSSTcorp CDDVDW SE-SO84D
----------------------------------------------------------
[] DVD.iso

The external DVD was physically connected the whole time. For some reason it unmounted/mounted at the start of the Burn.

Resolved: It needs more power from USB ports. I used an external self-powered hub to deliver that.