Comment by TonyTrapp

While I also like 7z a lot and use it all the time, it's really not a better format that RAR. Higher compression ratios? Sure, marginally. But for archival RAR is still the better choice as it supports recovery records, which 7z still does not. I also found it more difficult to restore data from a partial 7z file (i.e. trailer data is missing) compared to an incomplete RAR file.