The string you provided matches the naming convention of a , likely shared on peer-to-peer networks or torrent trackers (with "vtwin" possibly being a username or release group tag).
Note: "HIts" in your title is a common typo from 2008-era scene naming (often lowercase "i" or capitalization errors due to filesystem constraints).
Please note: The official Nirvana greatest hits compilation is Nirvana (often called the "White Album" or "Greatest Hits"), a single CD/DVD set released in 2002 .
