This was developed by a fellow Sonar user about a year ago. I haven't used it (yet), but it looks very promising (and it's free).
http://www.jamsoft.co.uk/ Major Features
- OneClick sample auditioning
- Upto 32Bit/192Khz audio support
- Mono, Stereo, Multichannel playback
- Polyphonic / Monophonic playback modes
- Audio looping
- QuickSearch feature
- Search individual hard drives
- Database view
- Explorer style audio specific browser view
- RanDrum random drum kit builder
- Exports NI Battery format drum kits
- Drag & Drop samples directly into other apps
- Include/Exclude compressed files in searches
- Automatic file categorisation
- Copy required samples to project directories
- Sample library statistics
- Support for over 160 file types
Supported Audio Formats
WAV, MP3, CDA, ALAC, OGG, WMA, AIFF, MP2, MP1, MP4, APE, FLAC, AAC, Musepack, Wavepack