Code:
afr:a2
Compressed block count (subblocks) = 4168 (59251)
LZO1X-W3(15) subblocks count = 0
LZO1X-999 subblocks count = 41043
LZO2A-999 subblocks count = 0
LZO1C-999 subblocks count = 0
Uncompressed subblocks count = 18208
Compressed subblocks size: 981113389 -> 1323071148
Uncompressed subblocks size: 505081644
Other data size: 1399003
Total data+table: 1487831040 -> 1830059387
WARNING! In file found corrupted LZO-streams. Check your data!
Edit:
Compression time with AFR:a2 was quiet fast, only ~2 minutes more.
Unpacking time was slower than standard compression, but not that much: ~2 minutes more.
MD5 Check was fine too.
Will test some more.