There are some known problems in this version:
CloneCD allows you to select a faster write speed than the drive allows. This is not really a bug, it is just a cosmetic glitch. If you select 6x speed with a 2x writer, it will simply write 2x.
Reading Subchannel Data from Data Tracks with Plextor CD-ROMs, Sony CD-ROMs, Sony CD-Writers CR-X120E, CR-X140E/S, CR-X145E/S, CR.X160E, Hewlett Packard CD-Writers 8200i, 8210i, 9100i, 9110i, 9200i, 9210i, 9300i, 9310i, 9500i, 9600i will always enable Fast Error Skip, too. You might need to reduce the read speed for reliable results!