Casio Cassiopeia EM-500 Pocket PC "viking" Questions

...supported. With the update 1.04 for the em500, secure digital (sd) cards can also be used. I use a Viking Components 64mb MMC card and a SimpleTech 128mb SD

Compact Flash card compatiblity e800 - can't see many CF types including Viking 256mb(Toshiba), PNY 1gb, Have tried formatting in a PCMCIA CF adapter but still not reading. Will read Kingston 256mb. ...

...CF list? Whomever told you this is blowing you off. People use all brands of CF cards from Viking, Scandisk, Lexar, Mr. Flash, etc. Sometimes there is a bad card and other times the CF slot ...