MakeMKV Startup errors

[younguns]

I have downloaded and installed version 1.8.6 on Ubuntu 12.04 LTS. The problem I am having now is as follows:

First off, on startup I get the following error codes:

MakeMKV v1.8.6 linux(x64-release) started
Debug logging enabled, log will be saved as /home/MakeMKV_log.txt
Error 'Scsi error - ILLEGAL REQUEST:INVALID COMMAND OPERATION CODE' occurred while issuing SCSI command 46020..00140 to device 'SG:dev_11:1'
DEBUG: Code 0 at @8")a&bc7x0%/Wx_:29402026
Error 'Scsi error - ILLEGAL REQUEST:INVALID COMMAND OPERATION CODE' occurred while issuing SCSI command 46020..00140 to device 'SG:dev_11:1'
DEBUG: Code 0 at @8")a&bc7x0%/Wx_:29402026

Secondly, if I try to go ahead and get the info from the disk, I wind up with a POSIX error:

Saving 1 titles into directory /home/B/Movies/X-Men_The_Last_Stand
Error 'Posix error - Input/output error' occurred while writing data to '/home/B/Movies/X-Men_The_Last_Stand/title00.mkv' at offset '1778384896'
Failed to save title 0 to file /home/B/Movies/X-Men_The_Last_Stand/title00.mkv
0 titles saved, 1 failed

Any help towards understanding what is going on here would be greatly appreciated. Thanks

[younguns]

Anybody have any clues to this problem?

[Woodstock]

Are you writing to a shared resource? The Posix error on write usually only happens when a network is involved, but it can happen on local drives. In fact, this error message pops up in searches for errors under Mac OS/X far more often than it does for Ubuntu...

How is the optical drive attached to the computer? SATA? IDE? USB? Firewire?

[younguns]

The optical drive is connected through SATA and is internal. It is writing to a internal HD SATA connected with 2 linux partions.