Finalizing both sides

You can download a copy of the instruction manual from here:-

http://www.canon.co.uk/Support/Consumer_Products/products/camcorders/Digital/DC_series/DC320.aspx?DLtcmuri=tcm:14-734954&page=1&type=download

You will have to agree the their licensing rules first.

Finalizing is featured on Page 45.

Here is the link to the manual for LG DR1F9H
read pages 33&34
you may be using wrong
disc or wrong mode

Use a name-brand DVD, such as HP, Verbatim, etc. and make sure it is a DVD+R or DVD-RW/-R disk only.
It is most likely that the DVD you are using is not compatible.
The disk is still usable, but you can only read it on that player.

You have to finalize after each recording and it is okay to use autofinalizing. Thanks.

to finalize the disk for enabling discs to be  played on other devices. Connect this unit to the AC adaptor. Finalization cannot be executed using a battery. Rotate the mode dial to select the arrow. Press the MENU button, then select SETUP, FINALIZE, YES and press the joystick. Select whether or not to create a top menu, then press the joystick. When the confirmation message appears, select YES then press the joystick. hope this helps you. julie

IF THAT DISC WAS RECORDED ON AND THEN REMOVED BEFORE FINALIZING IT WILL NOT FINALIZE. THE CAMERA LOOSES THE MAIN INFORMATION TABLE FOR THAT RECORDING. ONLY THING TO DO NOW IS, IF THE DISC CAN STILL PLAYBACK ON THE CAMERA THEN CONNECT IT TO A DVD RECORDER VIA THE AV PORT AND RECORD.

It sounds like you haven't selected DVD first. When dubbing to DVD, you need to do this in HDD mode. When finalizing, you need to be in DVD mode for the finalizing options to come up.

SAME PROBLEM AND IVE TRIED ALL TYPES AND BRANDS OF DVDS. IM RETURNING MY P.O.S. , DONT WASTE ANY MORE OF YOUR TIME OFF FOOLING WITH IT

on standard players. The write all the information that a standard player looks for to read the disk. Nothing is lost if you take the DVD out of the recorder without finalizing it. On a PC, you would tell the software to eject the disk. Later model hardware can usually reopen a disk after it has been finalized. Is this a typo? 'I know that the disc cannot be seen in a DVD player after being finalized'. It should read; I know that the disc can be seen in a DVD player after being finalized

The only reason that you have to finalize a DVD-R disc is so that you can play it back in an external DVD. Once finalized, you can no longer add motion video to that particular disc. Discs that are not finalized can still be played back when inserted in the DVD-camcorder.