 The audio quality of the source discs, when they have survived unscathed and are accessed and dubbed anew, is usually found to be reasonably clear and undistorted, sometimes startlingly good, although like all phonograph records they are vulnerable to wear and the effects of scuffs, scratches, and ground-in dust.Many shows from the 1940s have survived only in edited AFRS versions, although some exist in both the original and AFRS forms.The Old Time Radio collection at the Internet Archive contains 4,157 recordings (as of January 13, 2019).