Hi all,

 I am having a problem with my cdr. If I run eject it opens the drive
 but I can't mount a disc on it or record.

 mounting returns mount: No medium found
 burning gives me:
 TOC Type: 1 = CD-ROM
scsidev: '/dev/hdc'
devname: '/dev/hdc'
scsibus: -2 target: -2 lun: -2
Warning: Open by 'devname' is unintentional and not supported.
Linux sg driver version: 3.5.27
Using libscg version 'ubuntu-0.8ubuntu1'.
cdrecord: Warning: using inofficial version of libscg (ubuntu-0.8ubuntu1 
'@(#)scsitransp.c      1.91 04/06/17 Copyright 1988,1995,2000-2004 J. 
Schilling').
Driveropts: 'burnfree'
SCSI buffer size: 64512
atapi: 1
Device type    : Removable CD-ROM
Version        : 0
Response Format: 1
Vendor_info    : 'PLEXTOR '
Identifikation : 'CD-R   PX-W4012A'
Revision       : '1.06'
Device seems to be: Generic mmc CD-RW.
Current: 0x0000
Profile: 0x0008
Profile: 0x0009
Profile: 0x000A
Using generic SCSI-3/mmc   CD-R/CD-RW driver (mmc_cdr).
Driver flags   : MMC-3 SWABAUDIO BURNFREE VARIREC FORCESPEED SINGLESESSION 
HIDECDR
Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R
Drive buf size : 4194304 = 4096 KB
Drive DMA Speed: 3574 kB/s 20x CD 2x DVD
FIFO size      : 4194304 = 4096 KB
Track 01: data     1 MB
Track 02: data   530 MB
Total size:      611 MB (60:32.22) = 272417 sectors
Lout start:      611 MB (60:34/17) = 272417 sectors
cdrecord: Success. test unit ready: scsi sendcmd: no error
CDB:  00 00 00 00 00 00
status: 0x2 (CHECK CONDITION)
Sense Bytes: 70 00 02 00 00 00 00 0A 00 00 00 00 3A 01 00 00
Sense Key: 0x2 Not Ready, Segment 0
Sense Code: 0x3A Qual 0x01 (medium not present - tray closed) Fru 0x0
Sense flags: Blk 0 (not valid)
cmd finished after 0.000s timeout 40s
cdrecord: No disk / Wrong disk!
demudi:/dataone/forrest/ZETA_1.1_LiveCD#  

dmesg gives me:
>Info fld=0x175, Current sr0: sense key Medium Error
Additional sense: L-EC uncorrectable error
end_request: I/O error, dev sr0, sector 1492
Buffer I/O error on device sr0, logical block 373
scsi0: ERROR on channel 0, id 3, lun 0, CDB: Read (10) 00 00 00 01 76 00 00 27 
00
Info fld=0x176, Current sr0: sense key Medium Error
ASC= 2 ASCQ=81
end_request: I/O error, dev sr0, sector 1496
Buffer I/O error on device sr0, logical block 374
scsi0: ERROR on channel 0, id 3, lun 0, CDB: Read (10) 00 00 00 01 75 00 00 02 
00
Info fld=0x175, Current sr0: sense key Medium Error
Additional sense: L-EC uncorrectable error
end_request: I/O error, dev sr0, sector 1492
Buffer I/O error on device sr0, logical block 373
scsi0: ERROR on channel 0, id 3, lun 0, CDB: Read (10) 00 00 00 01 76 00 00 01 
00
Info fld=0x176, Current sr0: sense key Medium Error
ASC= 2 ASCQ=81
end_request: I/O error, dev sr0, sector 1496
Buffer I/O error on device sr0, logical block 374
scsi0: ERROR on channel 0, id 3, lun 0, CDB: Read (10) 00 00 00 01 75 00 00 02 
00
Info fld=0x175, Current sr0: sense key Medium Error
Additional sense: L-EC uncorrectable error
end_request: I/O error, dev sr0, sector 1492
Buffer I/O error on device sr0, logical block 373
scsi0: ERROR on channel 0, id 3, lun 0, CDB: Read (10) 00 00 00 01 76 00 00 01 
00
Info fld=0x176, Current sr0: sense key Medium Error
ASC= 2 ASCQ=81
end_request: I/O error, dev sr0, sector 1496
Buffer I/O error on device sr0, logical block 374
scsi0: ERROR on channel 0, id 3, lun 0, CDB: Read (10) 00 00 00 01 75 00 00 02 
00
Info fld=0x175, Current sr0: sense key Medium Error
Additional sense: L-EC uncorrectable error
end_request: I/O error, dev sr0, sector 1492
Buffer I/O error on device sr0, logical block 373
scsi0: ERROR on channel 0, id 3, lun 0, CDB: Read (10) 00 00 00 01 76 00 00 01 
00
Info fld=0x176, Current sr0: sense key Medium Error
ASC= 2 ASCQ=81
end_request: I/O error, dev sr0, sector 1496
Buffer I/O error on device sr0, logical block 374
end_request: I/O error, dev sr0, sector 296488
Buffer I/O error on device sr0, logical block 74122
Buffer I/O error on device sr0, logical block 74123
Buffer I/O error on device sr0, logical block 74124
Buffer I/O error on device sr0, logical block 74125
Buffer I/O error on device sr0, logical block 74126
Buffer I/O error on device sr0, logical block 74127
Buffer I/O error on device sr0, logical block 74128
Buffer I/O error on device sr0, logical block 74129
Buffer I/O error on device sr0, logical block 74130
Buffer I/O error on device sr0, logical block 74131
Buffer I/O error on device sr0, logical block 74132
Buffer I/O error on device sr0, logical block 74133
Buffer I/O error on device sr0, logical block 74134
Buffer I/O error on device sr0, logical block 74135
Buffer I/O error on device sr0, logical block 74136
Buffer I/O error on device sr0, logical block 74137
Buffer I/O error on device sr0, logical block 74138
Buffer I/O error on device sr0, logical block 74139
 etc.


 so my question is this a hardware problem?
 The cable? the drive? what other options.

 I googled a bit but couldn't get far.

 Oh another clue, this started happening after I added extra ram.

 I at first thought that since A gave it to a technician to do this he
 may have partially unplugged a cable so I opened up the box and
 pushed in all cables but it didn't make a difference...

 Any ideas would be most welcome

 thanks
 Aaron

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