AsimCDFS or CacheCDFS or AmiCDFS

[Thomas]

Which one is better for WB2.1 with SCSI CD drive? :hammer:

Well, actually AmiCDFS is the only one which is available to you semi-legal.

AsimCDFS is a commercial product. Unfortunately you cannot buy it any more.
CacheCDFS is a commercial product. You get it if you buy either OS 3.5, OS 3.9 or IDE-fix (a.k.a. IDE-max).
AllegroCDFS is a commercial product. You get it if you buy a matching hardware from Elbox, but it needs this hardware as a dongle, otherwise it does not run.
AmiCDFS is shareware, but I think the author no longer cares.

There is also BabelCDFS, but it's targeted more towards WB 1.3.

[Thomas]

AllegroCDFS support DVD UDF 1.02

They say so, but in practice it's of no use. I tried many DVDs with both CacheCDFS and AllegroCDFS. What could be read by AllegroCDFS could be read by CacheCDFS, too. And what could not be read by CacheCDFS could not be read by AllegroCDFS, too. So AllegroCDFS is not a single bit better than CacheCDFS.