Hi Igor Pavlov,
I'm writing a ".7z" archive reader, it is not convenient for me to support ppmd method. Do you have any ideas that how often the users compress ".7z" archive with ppmd method ? I just want to make sure that if ppmd method is not used very often in "*.7z" archive, I could support it later, otherwise ,I have to spend more time supporting it now.
Thank you very much.
Probably less than 1% of 7z archives use PPMd.
Thanks, and how about Lzma2 ? I mean before v9.20, I know that in the next version of 7zip lzma2 will be the default.
You can start with LZMA only. Then update the code for LZMA2 support.
I mean how often users use Lzma2 before v9.20 ? can you give me some pointers?
I have no statistics.
Thank you for replying.