Edirol is also a member of the Roland group and they are also dealing with mobile multitrack, but from a different aspect. R-44 is a real professional product, with XLR connections, four channels, a maximum resolution of 24/192, and records only uncompressed files. You can link together two units to record eight channels in perfect sync. Its medium is SD or SDHC cards, runs four hours from AA batteries, weighs 1.3 kilogramm, has a USB 2.0 connector, and has some real-time effects like EQ, compressor, limiter and de-esser. To dig into the details go to the product's page.