Stepmania Online

This is the first time I'm trying SMO. I did end up playing a couple of songs from the ITG3 pack against some players. But what I'm trying to figure out is a way to identify what song packs are used in what rooms. Is there a way I can easily identify this without going in random rooms and asking people about the packs?

I don't want to disrupt gaming, but instead I want to enter a room knowing that I have the song pack installed and ready to go so that once I'm in, and the players are ready, the game can start.

Any advice is appreciated.

It should be on the description of the room but it's not always the case. There is a command inside a room who let you know what is the packs you and the other player in the room shares. Run a /scan command outside any room to let the server know what are your packs, then, inside a room, use /commonpacks to know what pack de you have in common with the other players here (sorry for the english, it's not my native language)