Hi, my build is as below in my signature. I'm using a Pioneer DVR-109 dvd drive. I'm dual booting it works and reads everything properly under Windows XP. In OS X however, it's a different story...

The drive is recognized properly under system profiler. It mounts DVDs and can read from data DVDs. However whenever I insert a DVD movie, DVD player, vlc and mac the ripper all can't read the disc.

If I look at the contents of the disc under the finder there is nothing there, as if it were an empty disc, although it does show the capacity of the disc.

I then cannot eject the drive until the next reboot.

Can anyone suggest the reason?

Is it to do with my chipset kexts? I'm not aware of any dvd drive specific kexts so I thought it must be to do with the chipset.

Thanks for any help!

I kinda have the same problem..

I suppose your DVD is PATA? Jmicron chipset? I think I read there's a patch somewhere.. otherwise you need a SATA DVD drive.