Unfortunately, there is no way I know of to check the amount of internal memory. You can easily check the HD and USB by pressing Function/Utility/Media/Property.

Gary cool
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)