[ydl-gen] cd and dvd player crashing

[robert]

Alas , another problem. Evolution mail is crashing when I try to send mail. I 
am using kmail and it seems to be ok. I have sent a bug report. 
When I try this  mount /dev/cdrom /mnt/cdrom I get this:
mount: you must specify the filesystem type.
The error message in /log/messages is : error-hdc-command error status-0x50 
drive ready seek complete error.
I have added a line in fstab from the internet and now when I click on the 
cd/dvd rom icon with a disk in it, data or music cd, it mounts. When i 
attempt to run a dvd it crashes quickly and requires rebooting with the error 
found above. 
Thanks for any help,Bob