From 813d21958075333ead2034f6023522bec685f8de Mon Sep 17 00:00:00 2001
From: Sasha Koshka <sashakoshka@tebibyte.media>
Date: Sun, 12 Oct 2025 13:39:37 -0400
Subject: [PATCH] tape: Fix bufferLenTag off by one error

---
 tape/tag.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tape/tag.go b/tape/tag.go
index 103f01b..19683e8 100644
--- a/tape/tag.go
+++ b/tape/tag.go
@@ -78,6 +78,6 @@ func bufferLenTag(length int) Tag {
 	if length < int(CNLimit) {
 		return SBA.WithCN(length)
 	} else {
-		return LBA.WithCN(IntBytes(uint64(length)))
+		return LBA.WithCN(IntBytes(uint64(length)) - 1)
 	}
 }