Questions tagged [optical-media]
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19 questions
2 votes
0 answers
29 views
Debian 10 creating /dev/srn device node for SCSI magneto-optical disk drive instead of /dev/sdn
I'm attempting to do raw reads of an old magneto-optical disk in Debian 10 (I can do this in Windows without issues) I was expecting linux to add the disk as /dev/hdn or /dev/sdn, but it appears to be ...
0 votes
1 answer
976 views
How to mount AARUF CD image?
I have a CD image file which has AARUF as its filename extension and I want to access its files. Using file, I don't get any further information about the format: $ file image.aaruf image.aaruf: data $...
0 votes
0 answers
78 views
Stablish uni-directional SFP network link
I am trying to establish a uni-directional Ethernet link where a singular fiber is used to transmit data to the receiver. The Rx of the transmit side and the Tx of the receive side are not physically ...
16 votes
3 answers
18k views
How can I watch an encrypted Blu-ray on a Linux desktop?
I have some retail Blu-Ray movies with DRM that I want to watch on my Linux desktop. I want to watch the movie directly from the disc. Tutorials I found online tell me how to rip it to a file, but I ...
1 vote
0 answers
59 views
Optical drive suffering from chronic premature ejection
My slot-loading optical drive (HP BDDVDRW CA21N) spins and up and then ejects every disc, a process that takes about 15 seconds. I've found lots of posts on enabling wanted ejects, but close to ...
2 votes
1 answer
666 views
Engrave on M-Disc
I want to use 100GB M-Disc for Backup. How can one determine whether the M-Disc Writing was engraved properly and successfully on the non-volatile substance? I plan to use Brasero for writing. What ...
1 vote
0 answers
802 views
How to verify a burned CD against a BIN/CUE image?
Burning a BIN/CUE image to a CD is pretty easy using cdrdao write --speed 1 --device /dev/sr0 path/to/image.cue , but I can't find any way to verify the burn afterwards. I'm used to Windows utilities ...
1 vote
0 answers
1k views
System keeps trying to access/read my laptop's empty CD drive
I'm using a 16-to-18-years-old laptop, a Clevo Zeus M3CW, on which I recently installed antiX Linux 19.3. The kernel version is 4.9.235 (compiled for 486). Now, whenever I boot, the kernel complains ...
2 votes
1 answer
7k views
Linux Mint - QEMU/KVM USB Redirect and Windows 10 Guest
A couple of months ago I installed Windows 10 version 1909 in a Linux Mint 19.1 (Tessa) QEMU/KVM guest. Using USB Redirect (aka USB Redirection, virsh attach), a USB to SATA bridge is connected to a ...
8 votes
2 answers
4k views
Check if CD or DVD is blank
I cannot mount a DVD, most probably because it is blank, so it contains no filesystem. Is there a way to be sure that the disk is blank?
0 votes
1 answer
254 views
Unreadable block in multiblock reading on dd / ddrescue: How does it handle it?
Let's say that I set the block size of dd or ddrescue to 256K. A sector of flash drives usually has 512 bytes, a sector on optical data discs has 2048 bytes. Let's assume that in the next 256 KB, ...
2 votes
2 answers
2k views
Linux scripting - how do I wait for CD/DVD medium to load before reading/mounting?
I'm putting together a quick-and-dirty script to read 100s of CD/DVDs onto a NAS. It takes care of ejecting and loading the tray, but I haven't figured out a simple way to wait/block for the medium to ...
1 vote
1 answer
811 views
Viewing ISO9660/Joliet/UDF Windows attributes?
How can I see the Windows attributes on optical discs? Examples: * Hidden. * Read-Only. * System file. The ACL tools on Linux still do not display the hidden attribute for instance.
1 vote
0 answers
54 views
Why does accessing sr0 close the tray but return an error while the drive selects CD/DVD/Blu-Ray?
I've seen this behavior across distros (probably across operating systems, too) and across optical-media drive makes/models. It appears any CD, DVD, and/or Blu-Ray drive, if an attempt is made to ...
0 votes
0 answers
65 views
How to view pending SCSI requests?
If the PC sends a request to read a sector on an optical disc, which turns out to be unreadable, the drive deadlocks the program into responselessness and motionlessness, until it returns the sector ...