MAVIS recovered files
=====================

Files are grouped as the MAVIS presented them (menu entries), not as
raw tape slots.  "MISSING" slots failed CRC in every capture.

Content duplicated across tapes — a gap on one tape may already be
covered by another:
  NUMBERS  tape 1 slots 18-23 == tape 2 side A slots 1-6, both now
           complete; the pages are byte-identical apart from their
           command-line footer (tape 2 reads "ed tunes" where tape 1
           reads "sav", which is how tape 2 slot 1 was recovered)
  GAMES    tape 1 == tape 2 side A, byte-identical (4592 B)
  COPY     tape 1 slot 7 == tape 3 slot 1, byte-identical (656 B)

The menu page is a table of 16-cell entries: a 14-character name, a
type letter with bit 7 set ('C' = code, 'T' = text/data), and the
file's block count.  The counts and types are reliable; menu ORDER is
NOT slot order (tape 1 lists GAMES first but stores it third, with
COPY interleaved inside it), so slot ranges come from the byte-770
counters, matched against the menu counts.

TUNES (tape 2 side A slots 8-13) is not recovered: nothing in those
slots carries the structure a block must have.  Slot 7 is a code
block -- signature, load address C000, a long 0xFF fill run -- and on
the menu's reading of PLAY as the side's only 1-block code file, that
is PLAY, the player for the TUNES data.  That identification is an
inference from type and content, not a settled fact.

Statuses: "slots read" decoded cleanly; RECONSTRUCTED means content
restored by realigning against known structure, with the CRC solved
rather than read; AMBIGUOUS means several CRC-valid readings that
disagree; LOST/MISSING means nothing usable survived.

Tape 1 side A (GAMES / CAT'S x3 / NUMBERS / MATRIX / COPY)   [fused_t1a]
   menu             slots   0-0    1/1 slots read
   CAT'S-1          slots   1-3    3/3 slots read
   GAMES            slots   4-11   7/7 slots read
   COPY             slots   7-7    1/1 slots read
   CAT'S-2          slots  12-14   3/3 slots read
   CAT'S-3          slots  15-17   3/3 slots read
   NUMBERS          slots  18-23   6/6 slots read
   MATRIX                         LOST  (a menu entry with no slots on this side)

Tape 2 side A (NUMBERS / PLAY / TUNES / GAMES / SPELLING)   [fused_t2a_v7]
   menu             slots   0-0    1 RECONSTRUCTED [0]
   NUMBERS          slots   1-6    6/6 slots read
   PLAY             slots   7-7    1 AMBIGUOUS [7]  (see ambiguous/README.txt)
   TUNES            slots   8-13   LOST  (5/6 slots unrecoverable)
   GAMES            slots  14-20   7/7 slots read
   SPELLING         slots  21-21   1/1 slots read

Tape 2 side B (ATWELL / DRAWING / GENERAL / ...HEAD)   [fused_t2b_v5]
   menu             slots   0-0    1/1 slots read
   ATWELL           slots   1-7    7/7 slots read
   DRAWING          slots   8-10   3/3 slots read
   GENERAL          slots  11-11   1/1 slots read
   G                slots  12-17   6/6 slots read
   DHEAD            slots  18-18   1/1 slots read

Tape 3 side A (COPY, dated Oct 9 1981)   [fused_t3a]
   menu             slots   0-0    1/1 slots read
   COPY             slots   1-1    1/1 slots read
