Sony CMT-M100MD The Sytem will not accept minidiscs. On switch on it appears to think that it has already got a mini-disc loaded (the display shows an MD Icon), which it tries to read, resulting in a 'Read Error C13'. This reporting of the mini-disc error continues at frequent intervals (approx every 16 seconds) regardless of which function is selected. The display has no detrimental impact on the playing of tapes or CDs. As soon as I select the MD function (without having inserted an MD) the display states 'TOC Reading' then after approx 16 secs it reports 'Read Error c13' then 'Welcome!' before returning to TOC Reading. I have tried inserting a min-disc into the device but it is reluctant to accept it and does not pull it into the player as normal.

Laser is out of allignment and needs to be re adjusted, this is not a simple solution and may take a repair person to do. This error is not uncommen with MD' players and other laser products that have came un allighned. Call sony for a atuherized service center as it will be a cheap fix to redo the allighment on the laser,

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Rulds2008

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A 'C13' error means the disc Table Of Contents can't be read. I had the same problem with a SONY MXD-D40 (Error C13). I opened the cover and gently turned the white wheel which guides the laser. After a small turn 1-2mm a small click was heard. I inserted a Md and the player was functioning again as it should.

Hope I helped with the repair of your problem.
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Arjun.

The C13 read error on Sony minidisc means that the Table Of Contents (TOC) cannot be read.

The Minidisc is a magneto-optical device that uses combined laser and magnetic technology to write ad re-write the tracks, and magnetic head only to read.

If the problem is only with a specific disk or with few disks, then this is probably because of faulty media. In that case the content on the specific disks may be lost.

If this happens with every disc, including blanks, or with the majority of disks, then it is usually because the magnetic heads are dirty or faulty.

Additionally, when problem is the head, the motor will spin the disk, if motor does not spin at all, then the microswitch that starts motor and the motor itself must be tested.

To clean the heads (there is more than one on a minidisc) use Sony Dvm-12cld : Minidisc Head Cleaner.

If that does not work, the heads must be replaced doing a precision soldering inside minidisc deck, and without moving or damaging nearby laser assembly, and other parts in there. In that case better having the job done by a technician, as this is a very delicate repair, the part from sony is not expensive.