diff --git a/tsMuxer/ioContextDemuxer.cpp b/tsMuxer/ioContextDemuxer.cpp
index 0f333c14..7a2051b2 100644
--- a/tsMuxer/ioContextDemuxer.cpp
+++ b/tsMuxer/ioContextDemuxer.cpp
@@ -133,15 +133,14 @@ void IOContextDemuxer::skip_bytes(const int64_t size)
         m_curPos += copyLen;
         m_processedBytes += copyLen;
     }
-
-    if (skipLeft > 2LL * m_fileBlockSize)
+    
+    while (skipLeft > 4LL * m_fileBlockSize)
     {
-        const int64_t offset = skipLeft - 2LL * m_fileBlockSize;
         m_bufferedReader->seek(m_readerID, m_fileBlockSize);
-        m_processedBytes += offset;
-        skipLeft = 2LL * m_fileBlockSize;
+        m_processedBytes += m_fileBlockSize;
+        skipLeft -= m_fileBlockSize;
     }
-
+    
     while (skipLeft > 0)
     {
         uint8_t* data = m_bufferedReader->readBlock(m_readerID, readedBytes, readRez);