.jam files are intended only for backup purposes, not to be read in the computer

please read in page 2•3 of 'JM4 Advanced Guide (Rev B) - English' (http://line6.com/support/manuals/jm4) how to export in .wav format

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most malfunctions are caused by SD cards themselves, but if you've tried already different cards and brands, your JM4 needs probably being serviced

please contact directly your Line6 dealer if your gear is still under warranty

if it's no longer under warranty, please contact UK's Line6 Service Center:

The POD

Clifton House,

Butlers Leap,

Rugby, Warwickshire,

CV21 3RQ.

+44 (0)1788 566 555 (phone)

+44 (0)1788 566 569 (fax)

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