OfficeDepot DVDR+DL On Sony AW-G170S = No Burn? :(

Got this DVD+R DL’S From Office Depot , Any idea why i cant burn em?
im on AW-G170S 1.73 ;(
Thanks


Unique Disc Identifier : [DVD+R-DL:CMC MAG-D03-064]

Disc & Book Type : [DVD+R DL] - [DVD-ROM]
Manufacturer Name : [CMC Magnetics Corp.]
Manufacturer ID : [CMC MAG]
Media Type ID : [D03]
Product Revision : [064]
Blank Disc Capacity : [4,173,824 Sectors = 8.55 GB (7.96 GiB)]
Recording Speeds : [2.4x , 3.3x-8x]

[ DVD Identifier V5.0.1 - http://DVD.Identifier.CDfreaks.com ]

** INFO : Drive = SONY DVD RW AW-G170S - [FW 1.73] - [FIBRE]
** INFO : Write Capabilities = DVD+R DVD+R-DL DVD+RW
** INFO : Write Capabilities = DVD-R DVD-R-DL DVD-RW DVD-RAM
** INFO : Disc = [DVD+R-DL:CMC MAG-D03-064]
** INFO : Reference Speed : 1x DVD = 1385 kBps
** INFO : An Writeable Disc Is Recommended For Accurate Results
** INFO : Write Speeds (Supported By This Drive On This Disc) Listed Below

** INFO : GET PERFORMANCE Write Speed Descriptor(s)
** WARNING : Drive Did Not Report Any Write Speed Descriptors

** INFO : MODE SENSE Write Speed Descriptor(s) [Legacy Command]
** WARNING : MODE SENSE Is Obsolete And Not Always Properly Supported
** WARNING : Drive Did Not Report Any Write Speed Descriptors

CMC is crap media.