Electronic:
Electronic indicates that the item is intended for manipulation by a computer. The item may reside in a carrier accessed either directly or remotely, in some cases requiring the use of peripheral devices attached to the computer (e.g., a CD-ROM player). This code is not used for items that do not require the use of a computer (e.g., music compact discs, videodiscs).
Electronic is code:
s in 008/23 and 006/06 Form of item (BK MU SE MX)
s in 008/29 and 006/12 Form of item (MP VM)
s in 008/22 and 006/05 Form of original item (SE)