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diff --git a/mythtv/libs/libmythtv/ringbuffer.cpp b/mythtv/libs/libmythtv/ringbuffer.cpp
index e361be2..89ce76a 100644
--- a/mythtv/libs/libmythtv/ringbuffer.cpp
+++ b/mythtv/libs/libmythtv/ringbuffer.cpp
@@ -339,7 +339,7 @@ void RingBuffer::CalcReadAheadThresh(void)
     readblocksize  = max(readblocksize, CHUNK);
 
     // loop without sleeping if the buffered data is less than this
-    fill_threshold = 3 * bufferSize / 8;
+    fill_threshold = 7 * bufferSize / 8;
 
     const uint KB32  =  32*1024;
     const uint KB64  =  64*1024;
@@ -667,15 +667,19 @@ void RingBuffer::CreateReadAheadBuffer(void)
         return;
     }
 
+VERBOSE(VB_IMPORTANT, LOC + QString("read %1 write %2 internal %3")
+    .arg(rbrpos).arg(rbwpos).arg(internalreadpos));
+
     bufferSize = newsize;
     if (readAheadBuffer)
     {
+        bool ahead = rbrpos > rbwpos;
         char* newbuffer = new char[bufferSize + 1024];
         memcpy(newbuffer, readAheadBuffer + rbwpos, oldsize - rbwpos);
         memcpy(newbuffer + (oldsize - rbwpos), readAheadBuffer, rbwpos);
         delete [] readAheadBuffer;
         readAheadBuffer = newbuffer;
-        rbrpos = rbrpos + oldsize - rbwpos;
+        rbrpos = ahead ? (rbrpos - rbwpos) : (rbrpos + oldsize - rbwpos);
         rbwpos = oldsize;
     }
     else
@@ -686,8 +690,11 @@ void RingBuffer::CreateReadAheadBuffer(void)
     poslock.unlock();
     rwlock.unlock();
 
-    VERBOSE(VB_FILE, LOC + QString("Created readAheadBuffer: %1Mb")
+    VERBOSE(VB_IMPORTANT, LOC + QString("Created readAheadBuffer: %1Mb")
         .arg(newsize >> 20));
+
+VERBOSE(VB_IMPORTANT, LOC + QString("read %1 write %2 internal %3")
+    .arg(rbrpos).arg(rbwpos).arg(internalreadpos));
 }
 
 void RingBuffer::run(void)
@@ -905,7 +912,7 @@ void RingBuffer::run(void)
             if (!request_pause &&
                 (used >= fill_threshold || ateof || setswitchtonext))
             {
-                generalWait.wait(&rwlock, 1000);
+                generalWait.wait(&rwlock, 10);
             }
             else if (readsallowed)
             { // if reads are allowed release the lock and yield so the