At least they warned you.  During the recent quarter, RealNetworks suffered significant losses and revenue declines, according to details shared during a scheduled earnings disclosure on Thursday.  Specifically, losses topped $188.5 million during the period, and revenues declined 11 percent to $135.7 million (7 percent on a constant currency basis).  The company blamed a number of “one-off timing related issues” for the results, including “product cycles” and a “major credit card reissuing”. Advertising was also blamed, though its impact was more limited.

And the specifics on music-related properties?  The drops are quite pronounced.  According to the company, Rhapsody subscribers downshifted to 750,000, from 800,000 during the first quarter of 2009.  That sounds manageable, though radio subscribers plunged to 75,000, from 1.2 million previously, according to a financial breakout by the company.  Collectively, Rhapsody and radio-specific subscriptions tanked 58.8 percent to 825,000, per the Real-supplied breakdowns.

In the aggregate, music-related subscribers slipped to 1.8 million, from 2.9 million in March, a 37.9 percent plunge.