diff --git a/openbr/core/qtutils.cpp b/openbr/core/qtutils.cpp
index 9c5bfcc..fdfd004 100644
--- a/openbr/core/qtutils.cpp
+++ b/openbr/core/qtutils.cpp
@@ -502,18 +502,18 @@ QString getAbsolutePath(const QString &filename)
 
 BlockCompression::BlockCompression(QIODevice *_basis)
 {
-    blockSize = 1000000;
+    blockSize = 100000000;
     setBasis(_basis);
 }
 
-BlockCompression::BlockCompression() { blockSize = 1000000; };
+BlockCompression::BlockCompression() { blockSize = 100000000; };
 
 
 bool BlockCompression::open(QIODevice::OpenMode mode)
 {
     this->setOpenMode(mode);
     bool res = basis->open(mode);
-//    qDebug() << "basis: " << basis->isReadable() << " write:" << basis->isWritable();
+
     if (!res)
         return false;
 
@@ -525,13 +525,10 @@ bool BlockCompression::open(QIODevice::OpenMode mode)
         precompressedBlockWriter->open(QIODevice::ReadWrite);
     }
     else if (mode & QIODevice::ReadOnly) {
-//        qDebug() << "BLock reader status:" << blockReader.status();
         QByteArray compressedBlock;
         blockReader >> compressedBlock;
-//        qDebug() <<" Post read attempt, " << blockReader.status();
 
         decompressedBlock = qUncompress(compressedBlock);
-//        qDebug() << "Read compressed block: " << compressedBlock.size() << "Expanded to:"  << decompressedBlock.size();
         decompressedBlockReader.setBuffer(&decompressedBlock);
         decompressedBlockReader.open(QIODevice::ReadOnly);
     }
@@ -560,19 +557,15 @@ void BlockCompression::setBasis(QIODevice *_basis)
 // block from basis
 qint64 BlockCompression::readData(char *data, qint64 remaining)
 {
-//    qDebug() <<" Reading: " << remaining;
     qint64 read = 0;
     while (remaining > 0) {
         qint64 single_read = decompressedBlockReader.read(data, remaining);
         if (single_read == -1)
             qFatal("miss read");
-//            single_read = 0;
-
 
         remaining -= single_read;
         read += single_read;
         data += single_read;
-//        qDebug() << "Read " << single_read << " reamining: "<< remaining;
 
         // need a new block
         if (remaining > 0) {