OK, this is driving me nuts.

I am running kernel 2.6.18, and I just plugged in a USB DVD player. It's
being recognized, but I can't find out how to address it:

usb 5-8: new high speed USB device using ehci_hcd and address 4
usb 5-8: configuration #1 chosen from 1 choice
Initializing USB Mass Storage driver...
scsi2 : SCSI emulation for USB Mass Storage devices
usbcore: registered new driver usb-storage
USB Mass Storage support registered.
usb-storage: device found at 4
usb-storage: waiting for device to settle before scanning
Vendor: PLEXTOR Model: DVDR PX-504A Rev: 1.01
Type: CD-ROM ANSI SCSI revision: 00
usb-storage: device scan complete
sr0: scsi3-mmc drive: 40x/40x writer cd/rw xa/form2 cdda tray
sr 2:0:0:0: Attached scsi CD-ROM sr0
sd 0:0:0:0: Attached scsi generic sg0 type 0
sd 0:0:1:0: Attached scsi generic sg1 type 0
sd 1:0:0:0: Attached scsi generic sg2 type 0
sd 1:0:1:0: Attached scsi generic sg3 type 0
sr 2:0:0:0: Attached scsi generic sg4 type 5

I can't find it under /dev/sd?, /dev/sg? or /dev/sr?.... All those return
a can't open or can'find.....

Where is it?

--Yan