Thanks for that Gigi - thought it was a bit odd that I was getting a mould like thing on my bb pads here - have been using the individual peg hanger thingys - machine has a high spin so not much moisture left in there after the wash cycle is done. Usually use little or no detergent so not sure there. Will get on to the maker for suggestions for next time as well soon.

Have gone and got some stain remover spray stuff - just rinsed them again in the machine after attempting to remove some of the stain. Got some of it out but not all; am about to go and use my usual heavy duty stain remover on them and then wash them x2 again before wearing (once with detergent and stain remover & once without detergents)