"The Queens of Country: Loretta Lynn, Dolly Parton, Patsy Cline" (MPI, 2009, three discs, color and b/w, $24.98). Culled from TV appearances, each of these discs collects live performances of respective early hits by Cline (from various programs), Lynn (as a young regular on "The Wilburn Brothers Show") and Parton (from her 1976 syndicated half-hour program, with guests Kenny Rogers, Rod McKuen, Linda Ronstadt and Emmylou Harris).

These are reissues of earlier releases: "Patsy Cline: Sweet Dreams Still," "Loretta Lynn: Songs of Inspiration" and "Dolly Parton & Friends." The latter is actually a two-disc set, but only the first disc is here (with three episodes and a bonus song from "The Porter Wagoner Show"); the disc even has imprinted: "Disc One."

Extras: full frame, 56 songs

"Number 10" (Acorn, 1983, three discs, $49.99). This ambitious English miniseries follows the lives of seven prime ministers from the Napoleonic era to the 1920s — two of them played by Jeremy Brett and Ian Richardson. Passionate drama of the type that the British seem to excel in making.

Extras: full frame, seven episodes, text biographies of prime ministers

"Blue Murder: Set 4" (Acorn, 2009, two discs, $39.99). DCI Janine Lewis (Caroline Quentin) — who balances homicide investigations with raising four kids as a single parent — is back with this new season of murder mysteries and domestic challenges. Quentin makes the show.

Extras: widescreen, six episodes

"Rip! A Remix Manifesto" (Disinformation, 2009, $24.95). This is a great example of how to take what could be a dull topic — copyright infringement — and shake it up until it becomes a fascinating and entertaining documentary.

Essentially a defense of file-sharing and mash-ups, with no apologies for its point of view, filmmaker Brett Gaylor makes a compelling argument (especially with regard to the folks at Disney) using the history of copyright material and intellectual property, and what it has evolved into — infringement vs. fair use. (There is some R-level language.)

Extras: widescreen, additional scenes, mash-ups

"Apollo 11: A Night to Remember" (Acorn, 2006, $24.99). Very good collection of interviews, news clips and NASA footage to tell the story of mankind's first steps on the moon, produced by the BBC.

Extras: full frame, excerpt from TV show "The Sky at night"