I can’t imagine why you’d need to pack around this much recording ability, but it’s always better to have too much rather than not enough. The Olympus VoiceTrek V-51 and V-61 Dictaphones are a pair of voice recorders that can handle the longest of lectures, the most boring of business meetings.

The Voice-Trek V-51 is available in white and comes with 1GB of internal memory, whereas the V-61 comes wrapped in a black casing and doubles the memory, putting two gigs of storage at your disposal. Both units support MP3 and WMA files, pack USB 2.0 connectivity, measure 94.8 x 38.6 x 11mm, and weigh 47 grams.

When you shift it over to LP (long play) mode, the V-51 is capable of recording up to 277 hours and 35 minutes of audio, whereas the V-61 pushes that to an incredible 555 hours and 45 minutes. That’s a lot of yak.