Priest's Guide for Singing the Mass & Plainsong for Parishes

In view of the Practicum I am working on for practical liturgical resources and aids, both liturgical and catechetical, I was intrigued to see, over at the The Abbey Shop the following instructional CD:

Let Us Proclaim the Mystery of Faith: A Guide for Priests Singing the Mass

Tracklisting:

1-6 Introductory Rite, Collects and Gospel
7-14 Prefaces
15-17 Eucharistic Prayer and Communion
18-20 Concluding Rite and Dismissal
21-25 Holy Week and Easter Vigil
26-32 Latin Texts

As well, on the same site here I also noticed this title:

Plainsong for Parishes

A comprehensive disc with a good selection of several plainsong Masses all within the reach of a normal choir and congregation, together with other Mass parts, chants and hymns to Our Lady. A recommended buy.

Tracklisting

1-5. Lux et Origo (Mass I)
6-10. Cunctipotens Genitor Deus (Mass IV)
11-15 Missa de Angelis (Mass VIII)
16-20 Cum Jubilo (Mass IX)
21-25 Orbis Factor (Mass XI)
26-29 Advent and Lent (Mass XVII)
30-35 Requiem Mass

36 Asperges Me
37 Vidi Aquam
38 Credo I
39 Credo III
40 Responses at Eucharistic Prayer
41 Mysterium Fidei
42 Pater Noster

43 Tantum Ergo
44 Ave Maria (Mode I)
45 Ave Maris Stella
46 Ave Regina
47 Ave Verum (Mode VI)
48 Regina Caeli
49 Salve Regina

Of course, I haven't heard either of these products to comment upon their quality or nature, but they certainly look of interest.