Would it really take 5 years to develop rare compress and decompression that seems an extreme overestimate in time. I don't know of the compressor decompression but that seems really high

▲

q3k 2 hours ago | parent [-]

Yeah, sounds closer to a 5 week thing, if you know what you're doing.

	▲	self_awareness an hour ago \| parent [-]
		5 week is a decompressor for 1 version. If this supports multiple versions of RAR, then writing decompressors alone for all of them is probably a year effort of work.