Hardware :: Blank Dvd Not Being Detected?

I'm having this weird problem and still I can't solve it.

I'm using Debian Squeeze and when I insert a blank dvd to burn it the disk is not detected. If I insert blank cd, audio cd or already burned dvd it works.

My dvd burner is Asus. Might I think the problem is related with hardware (burner) and I may try replacing it? Or I could test through software to check if hardware should work?

I'm running 2.6.32-3-686-bigmem kernel.

This is lshw output:

Code:
# lshw -C disk
*-disk
description: ATA Disk
product: WDC WD1600AABS-0
vendor: Western Digital

[Code]....