Help: burned VCD does not play !!!

[ktnwin]

I ran into a strange problem recently. I have burned lot of VCDs, SVCDs successfully, they all play on my standalone DVD players.
Recently, some of the CD I burned are bad, they can neither be read by the computer CD-ROM nor by the DVD player. The bad ro good ratio is 1 out of 4. For every 4-th good CD, one is bad. By the way, the MPEG files play fine with WMP from the HDD.

Can someone shed the light to this problem. Is this cause by bad CD discs ?

Here is my system config:
T-Bird 1.2 GHz + 256MB memory
DVD-ROM 12X
HP CD-RW 4X
30GB and 60GB UDMA-100 HDDs
TMPGEnc 12a and 12f for encoding
Nero software for CD burning
Firewire for DV capture

[bobotns]

1) the CD-Brand you're using is not good. Try Sony, Verbatim (DataLivePlus) or Philips (Premium Silver, NOT multi purpose).

2) burn with 2x or 4x

3) don't make anything when you're burning a CD.

[ktnwin]

It appears to be so. I am using the Pioneer brand (yellow discs). If I burn at 2X, it seems to work everytime, at 4X, sometimes it does not.

[ktnwin]

Actually, I was wrong about burning at 2X. These discs sucked. Some of them got rejected by my CD writer right at the start of burning.
Too bad, I still have a stack with 40 of them !!!