db4o for .NET 

db4o (database for objects) is the open source object database. Features include native .NET object persistence, object-oriented replication, automatic schema recognition, 350K footprint. Ideal for embedded use and in realtime systems.
db4o database objects object oo .net dotnet c# csharp cli clr free opensource

Ultimate Encoder 2004 

Ultimate Encoder 2004 is a high fidelity CDA/MP3/WMA/AVI//WMV Audio/Video encoder and decoder for Windows 2000, XP or higher, with integrated CD-Grabber, supports MP3 from 8Kbps to 320Kbps and WMA9 (Windows Media Audio V9)
mp3 audio mpeg sound cdgrabber cda cddb track encode compress mp2 wav wmv decode