I would be so utterly disappointed and surprised if Napster had somehow grown up into a stable, solvent, law-abiding corporation.
Hate to disappoint...but it was exactly that for longer than it was the P2P network from which it got its notoriety.
Circa 2003, Napster came back as a legit music seller, just like iTunes. They spent a few years selling DRM'd WMA files, but they were between a rock and a hard place because Apple wouldn't license the iTunes DRM that worked on iPods, nor would they license Microsoft's WMA format, and the RIAA wasn't about to let them sell ordinary MP3 files without DRM (God knows how Amazon managed to score that deal)...so, Napster blamed Microsoft for the fact that their sales paled in comparison to Apple.
I'd argue that they were also a bit ahead of their time; Napster To Go was a monthly subscription service that used Microsoft's Janus DRM to enforce subscriptions...the Slashdot crowd hated the DRM at the time, but in a pre-LTE era, that was pretty much how subscription music on mobile was going to happen...and several years later, we have Spotify, which is basically the successor of Napster To Go, enforcing its DRM by other means. They also had a short-lived partnership with XM Radio that allowed subscribers to listen to linear streams of certain music channels, in turn allowing rental or purchases of songs that were liked while broadcast. A decade later, Shazam would do that with Apple Music and audio recognition, but Napster implemented a rudimentary version of the idea before Apple implemented iMessage.
In 2011, Rhapsody acquired Napster, but their niche was in licensing to other businesses. While they kept the "Spotify from Temu or Wish.com" setup for a while, their real bread and butter was in licensing to other companies; many of those music channels available on cable subscriptions were Rhapsody on the back end. They also did 'compliant music for businesses', similar to Muzak and other companies who pumped music into stores and bars and things. Amusingly enough, Rhapsody rebranded itself as Napster, and continued on the model, going through a handful of private equity firms, until earlier this year, when once again, the company found itself in court...again...due to unpaid licensing fees.
So...yeah, while they've floundered around for a number of reasons (some their fault, some not), they were a P2P service for about three years...and a (mostly) law-abiding corporation for over 20...and most of the highlights were posted as articles here on Slashdot.