Masked Compression (Ultimate compression in one go)

[SAM2712]

Thanks for Manual Somehow I need little guide
CPU= fx 8350 (8cores) , RAM (8gb) , win10 x64 , Usage masked compression (latest)
Case 1. When i use 4 cores of cpu then I have to do ( 4 * 200 * 10 = 8gb) B'cos I have 8gb ram but I have cpu fx 8350 So i have to do 4 cores disabled, If I want to use above formula, Right or Not?
Case 2. But If -mmt=on (Default) is used then compression will be done according to cpu cores available I MEAN cpu cores will be increase or decrease during compression , Right or Not?
Case 3. If all cores will be use then acc. to my ram, I have to use ( 8 * 100 * 10 ) Right or not ?
Please look for case 2 mainly beacuse I don't want to disable 4 core In all cases If I explained Right then I can use anyone case
If I mistake any then correct me
In last one thing also what is -mcrc=0 if I change to 1 then crc error never occur , Right or Not