This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
By J2ME compatible phones, I assume you are refering to MIDP phones. (This is an important point.) MIDP does not support file formats, because MIDP devices do not require file systems, instead the use the RMS data storage system. MIDP itself uses the LCDUI toolkit for graphics, so what you write must be compatible with that. (Note: vendors may add their own APIs which do support other file formats, but don't hold your breadth.) --Mark
I’ve looked at a lot of different solutions, and in my humble opinion Aspose is the way to go. Here’s the link: http://aspose.com