I have periodic crackle and other noises when playing back tracks ( WMA VBR ) from a 32GB SDHC card - I do not know the class of card, it is not marked.
This card is known good, and previously lived in my Sansa Clip+ prior to its death a week back and I had none of these issues.
Playback of same tracks, copied from the slot to the Clip’s internal storage seems OK.
On reading the forums, Its seems as if there are some problems with some cards, or card speed.
Before I try a seminifinite number of cards which don’t work, does SanDisk provide guidance as to which ones do?