The pops and clicks could be on your source video or your audio settings were not correct in your final video file before burning. A faulty player or bad disc can also cause video or audio problems. If the video freezes or breaks up, scratches on the disc may cause it. It's normal for DVDs to freeze for a fraction of a second in the middle of a movie -- this is a layer break.
My guess is your settings.
When you prepare video for a DVD you want to make sure that audio is compatible with the DVD format. For example, you?re in final cut pro and you choose AAC audio for the final video to be burned onto DVD?.sure, you?re going to hear something but AAC is not a compatible audio format for DVDs so you will hear some discrepancies.
Discs containing (NTSC) video must use PCM audio or Dolby Digital on at least one track. Discs containing (PAL) video must use PCM or MPEG audio or Dolby Digital on at least one track. Additional tracks may be in any format.
When you create video for a DVD, 48 Khz 16 bit stereo is the ultimate setting for your audio when getting ready to burn. The variable bit rate is 32 kbps to 912 kbps, with 384 being the normal average rate. MPEG-1 is limited to 384 kbps.
Now, if you?re getting audio hum or noisy video, it's probably caused by interference or a ground loop. Ground loop is a condition where an unintended connection to ground is made through an interfering electrical conductor. Generally ground loop connection exists when an electrical system is connected through more than one way to the electrical ground. Try a different set of cables. Try a shorter cable. (Long cables can degrade the signal.) Make sure the cables are good quality with shielding. Try turning off all equipment except the pieces you are testing. Try moving things farther apart. Try plugging into a different circuit. Make sure all equipment is plugged into the same outlet. If all else fails, ground your braces and wrap your entire house in tinfoil.
More information on ground loops can be found here
Last update: 12:21 PM Saturday, August 5, 2006