## Facts

- Liberty Media Holdings, LLC owned the copyright to an adult motion picture.
- Liberty Media alleged that numerous internet users infringed its copyright using the BitTorrent protocol by downloading and uploading the same file identified by a specific hash value.
- The alleged infringement occurred over an extended period (approximately November 17, 2010 through January 31, 2011).
- Liberty Media sued multiple defendants (initially John Does tied to IP addresses) in a single action, asserting that their participation in the same BitTorrent “swarm” made joinder proper.
- Liberty Media sought early discovery (including ISP subpoenas) to identify subscribers associated with the IP addresses.
- The matter came before the district court on whether multiple defendants could be permissively joined in one case under Federal Rule of Civil Procedure 20(a)(2).

## Issues

1. Whether allegations that multiple defendants participated in the same BitTorrent swarm over a multi-week period satisfy Rule 20(a)(2)’s requirement that claims arise out of the same transaction, occurrence, or series of transactions or occurrences.
2. Whether, if Rule 20(a)(2) is not satisfied, the court should sever misjoined defendants to address fairness and case-manageability concerns.

## Decision

- The court held that the defendants were improperly joined under Rule 20(a)(2).
- The court found Liberty Media had not shown that defendants’ alleged infringements were part of the same transaction or series of transactions, as opposed to separate acts using the same technology.
- The court severed all but one defendant from the action and dismissed the severed defendants without prejudice to filing separate suits.
- The order did not decide the merits of the copyright infringement claims.

## Legal Principles

- Under Federal Rule of Civil Procedure 20(a)(2), multiple defendants may be joined only if (1) the claims arise out of the same transaction, occurrence, or series of transactions or occurrences, and (2) there is at least one common question of law or fact.
- Similar alleged wrongdoing, even involving the same work and method, is insufficient; merely committing the same type of violation in the same way does not link defendants for joinder.
- Participation in a BitTorrent swarm, without a concrete factual basis showing coordinated or concerted action among defendants, may reflect independent acts rather than a single series of related transactions.
- Courts may sever misjoined defendants where joinder risks prejudice, creates unwieldy discovery, and would require defendant-by-defendant factual determinations within one proceeding.

## Conclusion

The court ruled that alleged BitTorrent swarm participation over a two-month period did not establish the transactional relatedness required for permissive joinder under Rule 20(a)(2), and it severed all but one defendant, leaving the plaintiff to pursue others in separate actions if desired.


Liberty Media Holdings, LLC v. BitTorrent Swarm, 277 F.R.D. 672 (S.D. Fla. 2011)