Hi Glenda,
We are actually talking about the same thing, and I think that someone has led you astray regarding it. The BSV Stuttgart is the most recent Catholic, and the best current scholarly edition of the Vulgate.
It was edited by Roger Gryson, Professor Emeritus at the Catholic University of Louvain-la-Neuve and board member of the Vetus Latina Institut, and Roger Weber, of the Pontificia Abbazia di San Girolamo in Urbe, under the auspices of both the VLI and the Wurttemberg Bible Society. The first edition was given an imprimatur by the Cultural Office of the Archbishop of Freiburg-im-Breisgau.
The Abbey were the ones originally given the task of the producing a modern, critical edition of the Vulgate, ultimately the Biblia Sacra Vulgata, and then of producing the OT edition for the Nova Vulgata after V2. The BSV was published first, in 1969. Ten years later, the NV came out, as the modern edition for church use. The BSV had, however, found its own place as the standard version for mediaeval scholars. It still holds that place.
The BSV includes all of Jerome’s prefaces, in their original locations, as well as both versions of the Psalter: the Gallican, Jerome’s revision of the Old Latin, which Alcuin introduced into versions of the Vulgate at the beginning of the C9th, and the Hebrew, Jerome’s translation from that language, which had been the norm for the Vulgate before Alcuin. To put QNDNNDQDCE’s comment about Ps 1:5 into that context, in concilio justorum is the Gallican, in congregatione justorum the Hebrew, and the Stuttgart has both. If you want the closest current view of Jerome’s original, the BSV is better than the NV.
Having said that, the NV is the one approved for liturgical use.