EXPERT ADVICE NEEDED for TMPGEnc 2.57

[DJ_ScHo]

I've been reading up on this forum for quite some time. Good helpful info here.
Anyways I have an MPEG of Spiderman, and I'm splitting the movie onto 2 SVCD CD-R's with TMPGEnc 2.57. I already encoded the first half and burned it and played it on my standalone APEX AD-1100W DVD player. The movie played fine but I noticed a lot of block noise, and the quality wasn't all that great.
These were my settings:

FORMAT: NTSC
VIDEO TYPE: Non-Interlace
ASPECT RATIO: 4:3 525 Line (NTSC 704x480)
VIDEO ARRANGE METHOD: Full Screen (keep aspect ratio)
RATE CONTROL MODE: Constant Bitrate (CBR)

My problem is that my AVERAGE VIDEO BITRATE is only getting to 1605 kbits/sec max.... onto a 80min CD-R, and I'm seeing lots of people getting 1900-2300 kbits/sec for AVERAGE VIDEO BITRATE.
What I'm I doing wrong? I'm a quality guy and the quality is no better than a crappy VHS tape that's been recorded over 1,000 times.

I'd like to know the best settings to use for SCVD using TMPGEnc for an average mpeg movie of 2hours? Or can I just burn the backup mpeg to CD-R with Nero and play it on my APEX DVD Player?

Any expert advice would be much appreciated.......

Thanks

[kruemel]

Well first of all you should provide more information about your Spiderman mpg. What size does it have? Has it been small enough from the beginning on to fit on "only" two CDs? If yes, it is quite obvious, that you got a bad quality version, because all version I know have a size of about 2.2 GB and therefore have to be put on three CDs. Or did you encode it to mpg2 yourself and compressed it?

[DJ_ScHo]

The Mpeg is 1.3 GB, encoded it to MPEG2 with TMPGEnc and burned it with Nero 5.5.9.0.