CD Mastering Conundrum

[SoundFNR@aol.com]

Anyone out there know the answer to this?

When mastering a Loop CD with a 60min evolving loop performance I had 
trouble 
splitting the long piece into 6 tracks ( he wanted this to help him listen 
to 
the various sections.
I split the track up into 6 .wav files (Cool Edit Pro) and then 
reassembled 
onto CD (Nero), with 0s pause beween tracks.
This produced clicks on the changes from one track to another.

I  know why this happens, because the CD format works with blocks of 
samples, 
so if your .wav is not an exact number of blocks in length it will be 
truncated.
This means that the rejoined sections are then discontinuous, so there's a 
click.

I notice that on commercial CDs that segue (most of Zappa's for instace) 
the 
transition is OK, but if you play just one track there's often a click at 
the 
beginning or end. I assume this is because the tracks were edited ro 
exactly 
the right length for the CD format, and this meant that the change from 
track 
to track would only fall onto a zero crossing point by chance.

So:-
Does anyone have the info
1)How to get round this?
2) How to calculate the length for a .wav file so that there's no 
truncation?
3) What is the Block size? 
4) There also seems to be an issue with the CD format trimming a very 
small 
section from the beginning of a .wav, anyone know what's going on here.

Well the guy I did the mastering for couldn't hear the clicks, but I 
reckon 
this is an issue for the making of loop CDs generally, as it seems very 
natural to want to split a long piece into manageable tracks (at least 
some 
of the time).

thanks

andy butler