Earlier today Macrovision (NSDQ: MVSN) announced its Q4 earnings and also mentioned that it has sold off its games DRM business (through Trymedia) to an undisclosed buyer for $4 million. We have found out through sources that the buyer is RealNetworks. This is in keeping with Real’s growing online and casual games business. Last year the company bought the casual games site Gametrust for about $20 million.

Trymedia was bought by MVSN for $34 million in 2005...This unit was in pretty rough shape, having lost $14 million in 2007, with losses anticipated to be in a similar range in 2008.

Update: Real has now made it official. Full details in the release.

• Earnings: Macrovision Q4 Revs Up 23 Percent; Selling Games Business For $4 Million
• RealNetworks To Buy Online Casual Games Site GameTrust; Price About $20 Million
• RealNetworks Acquires Brazil-Based Casual Game Studio Atrativa