First of all many thanks for this incredible sharing platform !
My band and I will release a demo CD next month, and there are a few freesound samples in our music. All the samples are credited on our website:
Now for the CD we'll go for the cheapest packaging, which is no liner, only front and back covers. I won't have enough space in the back cover to mention all the soundfiles creators, so do you think it is ok if I just mention the following URLs:
http://www.astrakan.fr/fr/freesound.html (all the freesound files used in the CD)
I just asked the CD manufacturer if it was possible to insert a little liner in the CD package, but the price just turn gorgeous. So I think I will just ask by email the sample creators and simply ask them if I can use their sounds.
In any case, I'll still mention Freesound and Creative Commons URLs, and of course my band's website where all samples are properly attributed.
Is this fine ?