Trouble with Erasing DVD-R

[Charmed]

I'm hoping somebody can help me out here. I burn a few movies onto TDK DVD-R disk 1.16x speed, when I tried playing on my DVD it would not play. I know for a fact that my DVD player plays these kinds of disk, I have other burn DVD's in DVD-R. anyways...after searching someone suggested getting IMGburn, erasing the disk and put the movies on through IMGburn. So now my problem is I can't get the disk to erase, this is what it's saying.

 

I 16:37:45 Operation Started!

I 16:37:45 Device: [0:0:0] hp DVDRAM GT50N MP01 (E:) (SATA)

I 16:37:45 Media Type: DVD-RW (Disc ID: CMC MAG. AM3)

I 16:37:45 Media Supported Write Speeds: 4x, 8x

I 16:37:45 Quick Erase: No

I 16:37:49 Erasing Disc...

E 16:37:52 Failed to Erase Disc! - Reason: Incompatible Medium Installed

E 16:37:52 Operation Failed! - Duration: 00:00:07

 

 

 

 

 

I don't know if this matters but I have an HP2000 and it's windows 8.

 

 

 

[RhoTrux64]

DVD-R can not be erased. Burn once only.