cd-rom .iso image not found after dd command
 

i was trying to install windows xp on vbox, but the cd wont work, so i want to make an iso image from the cd and run it from that. after some research, i found this code to use disk dump and make a raw cd image:

ive done that successfully (making sure the drive is unmounted), but i cant even find the file now. ive searched the filesystem, but it doesnt appear anywhere. can anyone help me with this one?

the command should work, and there is no room for confusion about the file location, either ~/cdrom_image.iso exists or it doesn't. what was the output of the dd command? Did it say it completed? How long did it take?

incidentally, it wouldn't really matter if it was mounted or not, as it's read only anyway.