Changing AVI clips into dvd files and burning them always has black squares and is bad quality.?

i use dvd flick and covert it to AUDIO_TS and VIDEO_TS and then use dvd shrink to burn them but it is horrible quality especially when the scene is dark and u can see like small pixelated squares. any reason for this? any better programs for turning an AVI into VIDEO_TS and burning it into a good tv.
Changing AVI clips into dvd files and burning them always has black squares and is bad quality.?
I use divx, never had a problem with it.
Changing AVI clips into dvd files and burning them always has black squares and is bad quality.?
Total Video2Dvd can help u burn avi to dvd, very easy to use.

http://www.effectmatrix.com/total_video_鈥?/a>

1. Support High-Definition video formats such as HD-DV, MKV, Blu-ray TS, TP, M2TS, AVCHD, WMV-HD etc to DVD.

2. Support most popular formats such as Youtube Flv, RM, RMVB, 3gp, h264, Xvid, MOV, VOB, Mpeg, Mpeg4, WMV, ASF, DV, Nsv, Ogm, AVI to DVD.

3. Convert video files into a compliant DVD and burns to DVD disc, also can create ISO image files.

4. Support lots of subtitle file formats, including .srt . sub .ssa .*** .smi .psb .tex .idx etc. Handles subtitles files (.srt) color and font. Supports tags.