I need a way to recognize automaticaly cd's (without a drive) , I am
looking for some barcoding technique that will be placed in the inner
ring of the cd/dvd (the unused area).  assume that this is not a rare
issue and that there are solutions for this problem.
I need a pointer to some activeX control (or a way to make control out
of a dll) that handle such barcodes.
I preffer free software , but also interested to know about licensed solutions

Two stickers with barcodes can do it. Won't be round, but they'd
offset each other for spin.

Print a barcode on, say, Avery 5130 labels in LANDSCAPE mode, ... it
should be small enough for placement, if you have one "line" of 12pt
barcode.

Even if you had ability to do a "round" barcode, you'd still need to
have a barcode scanner to read it. This isn't necessarily a standard
item.

You don't need special software to read the code, as the barcode
scanner is usually a keyboard wedge. That means the scans come in as
if typed on a keyboard.

It's up to you to find a database that will match a barcode to your CD
Inventory. Then print the barcode... You'll need a scanner.
http://shorterlink.com/?WWOLFK is a good start. It includes scanner
and some barcode fonts. http://shorterlink.com/?CDTLTC for more
information.