convert ccd to chd

 install virtual clone drive and mount the cd

https://www.elby.ch/en/products/vcd.html

install exact audio copy

https://www.exactaudiocopy.de/en/index.php/resources/download/

in c:\Program Files (x86)\Exact Audio Copy\CDRDAO>

cdrdao.exe read-cd --device 2,0,0 --read-raw --read-subchan rw_raw myfile.toc

and then 

chdman createcd -i myfile.toc -o myfile.chd

==LINUX==

install cdemu:

sudo add-apt-repository ppa:cdemu/ppa

sudo apt update

sudo apt install cdemu-client cdemu-daemon gcdemu

gcdemu

(a tray icon appears)

cdrdao read-cd --device /dev/sr0 --read-raw --read-subchan rw_raw file.toc

chdman createcd -i file.toc -o file.chd