diff --git a/src/tape/drive/mam.rs b/src/tape/drive/mam.rs
index 54b8100e..a90f1655 100644
--- a/src/tape/drive/mam.rs
+++ b/src/tape/drive/mam.rs
@@ -115,7 +115,7 @@ fn read_tape_mam<F: AsRawFd>(file: &mut F) -> Result<Vec<u8>, Error> {
         .map(|v| v.to_vec())
 }
 
-/// Read Medium auxiliary memory attributes (cartridge memory) using raw SCSI command. 
+/// Read Medium auxiliary memory attributes (cartridge memory) using raw SCSI command.
 pub fn read_mam_attributes<F: AsRawFd>(file: &mut F) -> Result<Vec<MamAttribute>, Error> {
 
     let data = read_tape_mam(file)?;
@@ -131,8 +131,12 @@ fn decode_mam_attributes(data: &[u8]) -> Result<Vec<MamAttribute>, Error> {
 
     let expected_len = data_len as usize;
 
-    if reader.len() != expected_len {
+
+    if reader.len() < expected_len {
         bail!("read_mam_attributes: got unexpected data len ({} != {})", reader.len(), expected_len);
+    } else if reader.len() > expected_len {
+        // Note: Quantum hh7 returns the allocation_length instead of real data_len
+        reader = &data[4..expected_len+4];
     }
 
     let mut list = Vec::new();
diff --git a/src/tape/drive/volume_statistics.rs b/src/tape/drive/volume_statistics.rs
index dee7ce66..a6a11590 100644
--- a/src/tape/drive/volume_statistics.rs
+++ b/src/tape/drive/volume_statistics.rs
@@ -27,8 +27,8 @@ pub fn read_volume_statistics<F: AsRawFd>(file: &mut F) ->  Result<Lp17VolumeSta
 
 fn sg_read_volume_statistics<F: AsRawFd>(file: &mut F) -> Result<Vec<u8>, Error> {
 
-    let buffer_size = 8192;
-    let mut sg_raw = SgRaw::new(file, buffer_size)?;
+    let alloc_len: u16 = 8192;
+    let mut sg_raw = SgRaw::new(file, alloc_len as usize)?;
 
     let mut cmd = Vec::new();
     cmd.push(0x4D); // LOG SENSE
@@ -38,7 +38,7 @@ fn sg_read_volume_statistics<F: AsRawFd>(file: &mut F) -> Result<Vec<u8>, Error>
     cmd.push(0);
     cmd.push(0);
     cmd.push(0);
-    cmd.push((buffer_size >> 8) as u8); cmd.push(0); // alloc len
+    cmd.extend(&alloc_len.to_be_bytes()); // alloc len
     cmd.push(0u8); // control byte
 
     sg_raw.do_command(&cmd)
@@ -142,8 +142,13 @@ fn decode_volume_statistics(data: &[u8]) -> Result<Lp17VolumeStatistics, Error>
 
         let page_len: u16 = unsafe { reader.read_be_value()? };
 
-        if (page_len as usize + 4) != data.len() {
+        let page_len = page_len as usize;
+
+        if (page_len + 4) > data.len() {
             bail!("invalid page length");
+        } else {
+            // Note: Quantum hh7 returns the allocation_length instead of real data_len
+            reader = &data[4..page_len+4];
         }
 
         let mut stat = Lp17VolumeStatistics::default();