diff --git a/BPTCEncoder/src/Compressor.cpp b/BPTCEncoder/src/Compressor.cpp
index b686693..7942270 100755
--- a/BPTCEncoder/src/Compressor.cpp
+++ b/BPTCEncoder/src/Compressor.cpp
@@ -1123,8 +1123,6 @@ double CompressionMode::CompressCluster(
     assert(pBitCombo == bestPbitCombo);
   #endif
 
-  assert(bestPbitCombo >= 0);
-
   return OptimizeEndpointsForCluster(
     cluster, p1, p2, bestIndices, bestPbitCombo
   );
diff --git a/BPTCEncoder/src/RGBAEndpoints.cpp b/BPTCEncoder/src/RGBAEndpoints.cpp
index 20ba9a2..68fcc43 100755
--- a/BPTCEncoder/src/RGBAEndpoints.cpp
+++ b/BPTCEncoder/src/RGBAEndpoints.cpp
@@ -338,7 +338,6 @@ double RGBACluster::QuantizedError(
 
     totalError += minError;
 
-    assert(bestBucket >= 0);
     if(indices) indices[i] = bestBucket;
   }
 
diff --git a/BPTCEncoder/src/RGBAEndpoints.h b/BPTCEncoder/src/RGBAEndpoints.h
index 4fea068..6807b1d 100755
--- a/BPTCEncoder/src/RGBAEndpoints.h
+++ b/BPTCEncoder/src/RGBAEndpoints.h
@@ -86,7 +86,7 @@ class RGBAVector : public FasTC::Vector4<float> {
   typedef FasTC::Vector4<float> BaseVector;
  public:
   uint32 GetIdx() const { return  m_Idx; }
-  RGBAVector() : BaseVector(-1.0, -1.0, -1.0, -1.0) { }
+  RGBAVector() : BaseVector(-1.0, -1.0, -1.0, -1.0), m_Idx(0) { }
   RGBAVector(uint32 idx, uint32 pixel) : 
    BaseVector(
     static_cast<float>(pixel & 0xFF),
diff --git a/CLTool/src/tc.cpp b/CLTool/src/tc.cpp
index a576931..3ac67ee 100644
--- a/CLTool/src/tc.cpp
+++ b/CLTool/src/tc.cpp
@@ -101,6 +101,10 @@ void ExtractBasename(const char *filename, char *buf, size_t bufSz) {
     }
   }
 
+  if (!base) {
+    base = end;
+  }
+
   size_t numChars = ext - base + 1;
   size_t toCopy = ::std::min(numChars, bufSz);
   memcpy(buf, base, toCopy);
diff --git a/PVRTCEncoder/src/Block.cpp b/PVRTCEncoder/src/Block.cpp
index 602aab5..6a27335 100644
--- a/PVRTCEncoder/src/Block.cpp
+++ b/PVRTCEncoder/src/Block.cpp
@@ -146,10 +146,8 @@ namespace PVRTCC {
   }
 
   void Block::SetLerpValue(uint32 texelIdx, uint8 lerpVal) {
-    assert(texelIdx >= 0);
     assert(texelIdx <= 15);
 
-    assert(lerpVal >= 0);
     assert(lerpVal < 4);
 
     m_LongData &= ~(static_cast<uint64>(0x3) << (texelIdx * 2));