Brightcove, which provides cloud-based software designed for publishing and distributing digital media and content apps, filed on Wednesday with the SEC to raise up to $50 million in an initial public offering. Brightcove offers its subscription-based services across various industries to over 3,000 customers, including Macy's, Honda, and Showtime, who use the software to enhance brand awareness. The Cambridge, MA-based company, which was founded in 2004, has attracted funding from well-known venture capital firm Accel Partners and plans to list on the NASDAQ under the symbol BCOV to create a public market for its stock. Morgan Stanley and Stifel Nicolaus Weisel are the lead underwriters on the deal. No pricing terms were disclosed.