diff --git a/revid/senders.go b/revid/senders.go
index 3515943e..87877784 100644
--- a/revid/senders.go
+++ b/revid/senders.go
@@ -49,9 +49,10 @@ import (
 
 // Sender pool buffer read timeouts.
 const (
-	rtmpPoolReadTimeout = 1 * time.Second
-	mtsPoolReadTimeout  = 1 * time.Second
-	maxBuffLen          = 50000000
+	rtmpPoolReadTimeout   = 1 * time.Second
+	mtsPoolReadTimeout    = 1 * time.Second
+	mtsBufferPoolMaxAlloc = 5 << 20 // 5MiB.
+	maxBuffLen            = 50000000
 )
 
 var (
@@ -228,6 +229,9 @@ func newMTSSender(dst io.WriteCloser, log logging.Logger, rb *pool.Buffer, clipD
 		done:     make(chan struct{}),
 		clipDur:  clipDur,
 	}
+	// mtsSender will do particularly large writes to the pool buffer; let's
+	// increase its max allowable allocation.
+	pool.MaxAlloc(mtsBufferPoolMaxAlloc)
 	s.wg.Add(1)
 	go s.output()
 	return s