I feel the whole reissue problem has suffered from a variety of problems:
1) the actual plant capacity is strapped again, so quality can suffer as they try to meet production runs. Vinyl has always suffered when the actual pressing time is less the optimal. I find small press runs tend to sound better, especially with the Japanese and European labels.
2) the record labels may not actually hold the original "master tapes" and new reissues are pulled off a second or third generation master
3) the new "producer" readjusts the original mix to his vision
4) the new bluray and HD digital files are stunning, and with the right DAC, rival the best vinyl.
1) the actual plant capacity is strapped again, so quality can suffer as they try to meet production runs. Vinyl has always suffered when the actual pressing time is less the optimal. I find small press runs tend to sound better, especially with the Japanese and European labels.
2) the record labels may not actually hold the original "master tapes" and new reissues are pulled off a second or third generation master
3) the new "producer" readjusts the original mix to his vision
4) the new bluray and HD digital files are stunning, and with the right DAC, rival the best vinyl.