Hello,

When i tray to upload new MP3 files by FTP, this cause high CPU usage on server, i use trial version 2.2.6.

Any solution for this issue?

thanks

Sorry but no, there is no solution for this within Centova Cast because it has nothing to do with Centova Cast.  FTP uploads take place entirely within your FTP server in v2.x, so if you're experiencing high CPU load (without manually clicking the "Update media library" link) then the problem is external to Centova Cast and would need to be diagnosed by your sysadmin.