For releases with DiscIDs, the total length shown on the DiscIDs page differs from the total length shown on the overview page. This seems to be caused by not taking the pregap into account.

For example:

https://musicbrainz.org/cdtoc/HdNpXHT0Z9pwMxzK4lsrrf0rfdk-

According to the list of track details, the first track starts at 0:02 and the last track ends at 1:16:21. So the total length for this disc should be 1:16:19, and not 1:16:21 as shown on this page.

This total disc length of 1:16:21 is also shown on the DiscIDs page for the release, and used to calculate the total length for the release (1:16:21+1:19:35 = 2:35:56):

https://musicbrainz.org/release/5bedda69-20c1-411e-bb6c-a19d01724e51/discids

However, the overview page for that release shows a total length of 2:35:52:

https://musicbrainz.org/release/5bedda69-20c1-411e-bb6c-a19d01724e51