Which boxset was that and have you heard that surround mix?I wonder if the SACD will be a straight port of the old SACD, or if they'll use the 5.1 mix that was on the Blu-Ray in that big Toto box set, which had longer versions of a few of the songs?
The Santana SACDs have been more or less on the 50th anniversary of the original albums, and Caravanserai was released in October 1972, so I'd say it'll likely show up later this year...