Panasonic VDR-M30PP Service Manual page 57

(1) Checking Disc
Connect the AC adapter/charger or charged battery pack, and then press the DISC EJECT button to
make sure that no disc is inserted. After check, close the disc cover.
If the disc cover does not open normally, refer to "4-8 Procedure for Removing Disc from Faulty
VDR-M30", and open the holder.
Prohibition
After the above check, disconnect the AC adapter/charger of battery pack from the VDR-M30.
The VDR-M30 has a built-in laser emitter block. Do not look into it: If Laser beam strikes your eye,
it could cause serious damage.
(2) Checking Card
Make sure that no card is loaded in the card slot. After check, close the card slot cover.