|The Canal Grande series would be normal cds.
There are a few recordings (Budapest Festival Orchestra oa.) that are originally in SACD.
But if SACD is not an interest to you, then this series is fine.
Concerning the sound quality of normal cd's.
This series is being copied from sending in one of the pressed cd's.
Not from the original mastertapes where master cd's are made from.
Whether the difference in masters will be audible to everyone's ears is a point for much discussion.
Of course the older cd process had the problem of copying the tapes everytime you had to make a correction as to having computer based systems today.
Every time a copy was made there was always some bit correction going on that degraded the original signal.