Unabkle to eject DVD after DVD burning failed

[Yuri]

I tried to burn some DVD with this command: growisofs -dvd-compat 
-speed=4 -Z /dev/cd0=image.iso
It failed for some reason, but I can't eject the disk now. Button 
doesn't work, and eject-1.5_4 errors out too:
$ /usr/local/sbin/eject /dev/cd0
 >  eject: Invalid argument

Running this command under truss I found this:
open("/dev/cd0",O_RDONLY,06370046000)            = 2 (0x2)
ioctl(2,CDIOCALLOW,0x33e04c00)                   ERR#22 'Invalid argument'
close(2)                                         = 0 (0x0)

My DVD writer:
acd0: DVDR <PIONEER DVD-RW DVR-112D/1.21> at ata4-master UDMA66

And device /dev/acd0 doesn't exist.

Yuri

--- growfs log ---
  2224685056/2305976320 (96.5%) @4.1x, remaining 0:15 RBU 100.0% UBU  51.0%
  2243526656/2305976320 (97.3%) @4.0x, remaining 0:11 RBU 100.0% UBU  53.1%
  2261778432/2305976320 (98.1%) @3.9x, remaining 0:08 RBU 100.0% UBU  51.0%
  2280685568/2305976320 (98.9%) @4.1x, remaining 0:04 RBU  75.4% UBU  53.1%
  2299330560/2305976320 (99.7%) @4.0x, remaining 0:01 RBU  19.8% UBU  57.1%
builtin_dd: 1125968*2KB out @ average 3.8x1352KBps
/dev/pass0: flushing cache
:-( unable to SYNCHRONOUS FLUSH CACHE: Input/output error