Recorders w/ Expandable Memory

Sony ICD-MX20 Digital Voice Recorder
Hybrid storage gives you the option of using the built-in flash memory or Memory Stick Duo or Pro Duo media cards.

The standout feature on the ICD-MX20 digital voice recorder is the hybrid storage. It gives you the option of using the built-in 32MB flash memory, or utilizing Memory Stick® Duo or Pro Duo media cards, providing virtually unlimited capacity. This is a great feature if you're at a long conference, and don't have time to download your files to a computer. Just put in a new Memory Stick® Pro™ Duo media card, and keep recording.

Olympus DM-520 Digital Voice Recorder DM520
4GB Internal Memory, Micro SD Card Slot, MP3, WMA and PCM Recording/Playback

The DM-520 provides more than a thousand hours of recording with 4GB of internal memory/up to 16GB memory card support and state-of-the-art capabilities such as file move, file copy, sound editing and multi-format recording.  It has the advanced software and capabilities you need to record and play back MP3, WMA, and WAV Formats, as well as manage podcasts.

DDR-5300 Diasonic CD Quality Voice / Tel Recorder / SD Card Slot
MP3 Format - FM Radio - Expandable Memory! Accessory Bundle PACK!

The first and only Recorder With "Better than CD Quality" Voice and Telephone Recording! The world's smallest digital voice recorder featuring uncompressed "broadcast quality" (Linear PCM) recording better than CD recordings. 1GB internal memory and micro SD card compatible up to 16GB, FM Stereo Playback and Recording! For automatic telephone recording, each call has it own file with time/date stamp. Capable of recording hundreds of telephone calls unattended!

Olympus DM-420 Digital Voice Recorder DM420
2GB Internal Memory, Micro SD Card Slot, MP3 & WMA Recording/Playback

With the DM-420, you can do much more than just record high-quality audio files. It has the advanced software and capabilities you need to record and play back MP3 and WMA formats, as well as manage podcasts. With 2GB of internal memory and up to 16GB of external memory, the possibilities are truly limitless.