I bought a pioneer dvr-109 in an external case on ebay. Couldn't get it to work over 1.7-1.8x speed regardless of the media, computer, or burning software. I sent it in and they claim to replace the pc board, same problem. I send it back and get it back with the same problem. I get a similiar, but different enclosure and this one can only write at 3x max. This one says usb 2.0 on it, the box, manual, etc. It should be working at 8x (my media speed).
Here is the kicker: I have an external enclosure for my hard drive. If I hook the dvd burner to that enclosure (it's only made for a hard drive to mount in) and connect to my pc, the burner runs perfectly at full speed.
After all this replacing and countless shippings from CA to Hawaii, are they simply sending me junk? I'm frustrated after over two months I don't have the working drive. I don't know if I should file with paypal for a partial refund (for the enclosure and/or all the shipping charges) and just buy my own enclosure online. I've never had such a problem. The fact that my HDD enclosure will run it at full speed makes me think they are sending me junk. Just consider what i've tried, all the different medias, softwares and many computers, all the same... sigh... am i just getting burnt enclosures?