This one blew me away the first time I watched it; way above average IMO.
What the hell are you guys talking about?!
They might be referencing the death of Chuck Berry. Berry's musical presence has kept a number of films from being released on home video, especially in the DVD format (AMERICAN HOT WAX and LET THE GOOD TIMES ROLL, to name two). UNHOLY ROLLERS has been released on VHS and DVD, but with the adaptations of Chuck Berry songs deleted from its soundtrack in favor of Kendall Schmidt synthesizer music.
The Shout Factory transfer is pretty good, but of course is missing the vocal songs. They did restore footage of the bar band (Louie and the Rockets), but had to go with the Kendall Schmidt synth soundtrack.