When burning with "Ulead VideoStudio" or "PCTV" or "VCDEasy" VCD's dont play on my MUSTEK 560! If I burn with "EasyCDCreator", it plays OK! All VCD's play ok in a JOCEL 2109 player

I noticed the file structure is different:
- BAD VCD contains directories \MPEGAV, \SEGMENT and \VCD.
- GOOD VCD contains directories \CDDA, \CDI, \KARAOKE, \MPEGAV, \SEGMENT and \VCD.

In both cases, they contain the files ENTRIES.VCD, INFO.VCD, LOT.VCD, PSD.VCD and the MPEG file MUSIC01.DAT.

If I record an audio CD, it plays OK! No problems with the CD-Rs or the CD-Writer, something related to the authoring... but VCDEasy seems to be compliant and the MUSTEK 560 is supposed to read almost everything, VCD and SVCD! The JOCEL plays them ok...

Can anyone tell me why this happens? Thanks in advance