<p>Since adding a USB bluray player, I can not longer play DVD's in either my IDE DVD player or the USB Bluray player.</p>
<p>In both cases it seems to try and load the UDF file system and then fails to read the disk, e.g.</p><font size="2">
<p>[447025.646044] UDF-fs: Partition marked readonly; forcing readonly mount</p>
<p>[447025.671882] UDF-fs INFO UDF: Mounting volume 'GEORGE_OF_THE_JUNGLE', timestamp 2003/10/31 00:44 (130c)</p>
<p>[447164.016037] usb 2-1: new high speed USB device using ehci_hcd and address 2</p>
<p>[447164.221358] Initializing USB Mass Storage driver...</p>
<p>[447164.222104] usb-storage 2-1:1.0: Quirks match for vid 05e3 pid 0701: 520</p>
<p>[447164.222145] scsi2 : usb-storage 2-1:1.0</p>
<p>[447164.222384] usbcore: registered new interface driver usb-storage</p>
<p>[447164.222387] USB Mass Storage support registered.</p>
<p>[447165.232211] scsi 2:0:0:0: CD-ROM MATSHITA BD-CMB UJ-120 1.01 PQ: 0 ANSI: 0</p>
<p>[447165.271823] sr2: scsi3-mmc drive: 62x/62x writer dvd-ram cd/rw xa/form2 cdda tray</p>
<p>[447165.272031] sr 2:0:0:0: Attached scsi CD-ROM sr2</p>
<p>[447165.272147] sr 2:0:0:0: Attached scsi generic sg3 type 5</p>
<p>[447170.881226] VFS: busy inodes on changed media or resized disk sr0</p>
<p>[447172.950082] VFS: busy inodes on changed media or resized disk sr0</p>
<p>[447198.953904] sr 2:0:0:0: [sr2] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE</p>
<p>[447198.953913] sr 2:0:0:0: [sr2] Sense Key : Illegal Request [current]</p>
<p>[447198.953919] Info fld=0x200</p>
<p>[447198.953921] sr 2:0:0:0: [sr2] Add. Sense: Read of scrambled sector without authentication</p>
<p>[447198.953929] sr 2:0:0:0: [sr2] CDB: Read(10): 28 00 00 00 02 00 00 00 02 00</p>
<p>[447198.953940] end_request: I/O error, dev sr2, sector 2048</p>
<p>[447198.953947] Buffer I/O error on device sr2, logical block 512</p>
<p>[447198.953951] Buffer I/O error on device sr2, logical block 513</p>
<p>[447198.955901] sr 2:0:0:0: [sr2] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE</p>
<p>[447198.955908] sr 2:0:0:0: [sr2] Sense Key : Illegal Request [current]</p>
<p>[447198.955913] Info fld=0x200</p>
<p>[447198.955915] sr 2:0:0:0: [sr2] Add. Sense: Read of scrambled sector without authentication</p>
<p>[447198.955922] sr 2:0:0:0: [sr2] CDB: Read(10): 28 00 00 00 02 00 00 00 02 00</p>
<p>[447198.955932] end_request: I/O error, dev sr2, sector 2048</p>
<p>[447198.955937] Buffer I/O error on device sr2, logical block 512</p>
<p>[447198.955942] Buffer I/O error on device sr2, logical block 513</p>
<p>[447199.221405] sr 2:0:0:0: [sr2] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE</p>
<p>[447199.221414] sr 2:0:0:0: [sr2] Sense Key : Illegal Request [current]</p>
<p>[447199.221420] Info fld=0x400</p>
<p>[447199.221422] sr 2:0:0:0: [sr2] Add. Sense: Read of scrambled sector without authentication</p>
<p>[447199.221430] sr 2:0:0:0: [sr2] CDB: Read(10): 28 00 00 00 04 00 00 00 02 00</p>
<p>[447199.221441] end_request: I/O error, dev sr2, sector 4096</p>
<p>[447199.221448] Buffer I/O error on device sr2, logical block 1024</p>
<p>[447199.221452] Buffer I/O error on device sr2, logical block 1025</p>
<p>[447199.223283] sr 2:0:0:0: [sr2] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE</p>
<p>[447199.223289] sr 2:0:0:0: [sr2] Sense Key : Illegal Request [current]</p>
<p>[447199.223294] Info fld=0x400</p>
<p>[447199.223296] sr 2:0:0:0: [sr2] Add. Sense: Read of scrambled sector without authentication</p>
<p>[447199.223303] sr 2:0:0:0: [sr2] CDB: Read(10): 28 00 00 00 04 00 00 00 02 00</p>
<p>[447199.223313] end_request: I/O error, dev sr2, sector 4096</p>
<p>[447199.223319] Buffer I/O error on device sr2, logical block 1024</p>
<p>[447199.223323] Buffer I/O error on device sr2, logical block 1025</p>
<p> </p>
<p>Any ideas?</p>
<p>Cheers</p>
<p>Douglas</p></font><br />