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-rw-r--r--src/lib/formats/ap2_dsk.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/lib/formats/ap2_dsk.cpp b/src/lib/formats/ap2_dsk.cpp
index 2cc0e0d0db1..e5e2e252e48 100644
--- a/src/lib/formats/ap2_dsk.cpp
+++ b/src/lib/formats/ap2_dsk.cpp
@@ -1716,6 +1716,8 @@ bool a2_woz_format::load(io_generic *io, uint32_t form_factor, floppy_image *ima
uint8_t idx = r8(img, off_tmap + trkid);
if(idx != 0xff) {
uint32_t boff = off_trks + 6656*idx;
+ if (r16(img, boff + 6648) == 0)
+ return false;
generate_track_from_bitstream(track, head, &img[boff], r16(img, boff + 6648), image, subtrack, r16(img, boff + 6650));
}
}