Books:
Serials: Not core for CONSER. YUL policy: add dimensions to member copy; record dimensions in original cataloging
Audio: LC practice for Alternative: Use inches for discs (RDA 3.5.1.4.4) and for all audio carriers; otherwise, follow the RDA instruction as written (abbreviate as “in.”)
Microfilm: record diameter of the reel in cm, followed by the width of the film in mm, e.g. 11 cm, 25.4 mm (3.5.1.4.9)
Refer to RDA 3.5 for other media.