iDVD rewinds the tape in the video camera and captures the video from the beginning. You can also set the tape in the camcorder to where you want to begin recording. Then, when you insert the blank disc into your computer and the tape begins to rewind, press the Play button on your camcorder immediately. This stops the rewind process and starts video capture.
Video capturing stops automatically at the end of the tape or after 10 seconds with no video. You can also manually stop capturing at any time by pressing the Stop button on your camcorder.
In iDVD, you can click Cancel to stop capturing video at any time and leave the DVD untouched. A dialog appears to let you either cancel the entire OneStep DVD or stop capturing and begin burning with the video already captured.
Note: iDVD records the DVD in whatever video mode—NTSC or PAL—is selected in iDVD preferences. If your footage is in a different format, iDVD warns you before burning because the burned disc may have some visual distortions.
After burning, to eject a disc from your computer’s internal disc drive, press the Media Eject key on your keyboard, if there is one. On keyboards with no Media Eject key, hold down the F12 key until the eject icon appears and your disc is ejected.
Go to Mac Help for more options for ejecting discs.