Disk utility identifies DVD/CD Rewritable =Ability Read Only (DVD+R)

I can no longer get my G5 to recognise my external
Sony DRX-700UL DVD/CD Rewritable Drive as Rewritable.
Connection Bus : FireWire
is being identified as
Write Ability : Read Only (DVD+R)
I have previously been able to burn and reburn to DVDs & CDs, using same batch as currently using.
TDK DVD+R single sided dvd-recordable Data/Video 4.7GB 1-8x Logo RW
imation DVD+R 2 hours video 4.7gb data logo RW
TDK 80 compact disc recordable logo disc
Machine Model: iMac G5
CPU Type: PowerPC G5 (3.0)
System Version: Mac OS X 10.3.9 (7W98)
Disk Utility: Version: 10.4.4

hgj

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Four thoughts
• Brand and type of DVD/CD Media
• Burn Speed ?
• Ever used a Cleaning DVD ?
• Free space on Main Start-Up Hard Disk ?
Brand and type of DVD/CD Media: MATTERS
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Burn Speed (in iDVD or alike): Matters
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HP Pavilion dv6-3140se Entertainment Notebook PC
{Personal Information Removed}
Product Number: XS065EA
" DVD RW Drive " is not reading / writing DVD.
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This eBay seller ships worldwide. You would have to transplant your plastic drive face but that is very easy to do:
http://www.ebay.com/itm/HP-Pavilion-DV6-3000-DVD-RW-DVD-RW-Multi-Burner-Drive-TS-L633-603677-001-B-/...

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HI Ying and Welcome to Apple Discussions ...
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Disk utility identifies DVD/CD Rewritable =Ability Read Only (DVD+R)

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