During the 1970s an underground recording industry emerged.
Bootleg vinyl sound quality.
The most common type is the live bootleg or audience recording which is created with sound recording equipment smuggled into a live concert many artists and live venues prohibit this form of recording but from the 1970s onwards the increased availability of portable technology made such bootlegging easier and the general quality of these recordings has improved over time as consumer.
The problem with most bootlegs is that they typically have absolutely horrible audio quality and sound worse than if they d been recorded with a microphone being flushed down the toilet.
Flac can handle up to 192k 24bit.
As we learned the same record from the very same stamper could sound quite different depending which pressing you were listening to.
Sometimes like in the case of that green nirvana bootleg live at bbc1 radio that popped up a while back it was a show they played and it was the songs that didn t get released.
This site covers a broad variety of releases from that era.
The quality is pretty good and sometimes it gets really quiet and then really loud.
Using audience recordings fm broadcasts and unreleased demo tracks as sources they were sold by mail order and independent shops.
Of course with copyright laws not applying to such releases great white wonder soon became copied by other bootleg manufacturers and the album has since appeared in a multitude of configurations on black vinyl and colored vinyl and with and without properly printed covers.
When i render a mix down to cd quality from 96 24 tracks and listen to the rendered mix i end up wishing that 96 24 was the typical resolution for music delivery.
Information on the difference in sound quality between the various vinyl bootlegs was even harder to find.