Digital media company RealNetworks Inc forecasts first-quarter and full-year 2008 revenue below Wall Street expectations partly due to slower growth in its Rhapsody America music business. For the full year, RealNetworks expected an adjusted loss of between 9 cents per share and 4 cents per share, on revenue of between $612 million and $632 million. Fourth-quarter revenue rose 25 percent to nearly $157 million from $125.6 million a year ago, beating analyst estimates of $155.3 million, driven by strength in its online games business. (Billboard)