It's usually segregated as clicks vs. crackle with crackle being much smaller and more numerous clicks. They result from poor quality pressings and/or poor handling. I believe Atmasphere draws a link between how audible and annoying they are with phono stage overload characteristics.
You must have a verified phone number and physical address in order to post in the Audiogon Forums. Please return to Audiogon.com and complete this step. If you have any questions please contact Support.