diff --git a/biostools/analyzers.py b/biostools/analyzers.py
index d100587..d8c8a48 100644
--- a/biostools/analyzers.py
+++ b/biostools/analyzers.py
@@ -1517,7 +1517,7 @@ class IBMSurePathAnalyzer(Analyzer):
 			b'''\\(\\(CC\\)\\)  CCOOPPYYRRIIGGHHTT  (?:IIBBMM  CCOORRPPOORRAATTIIOONN  11998811,,  ([0-9])\\1([0-9])\\2([0-9])\\3([0-9])\\4|11998811,,  ([0-9])\\5([0-9])\\6([0-9])\\7([0-9])\\8  IIBBMM  CCOORRPPOORRAATTIIOONN)  (?:--  )?AALLLL  RRIIGGHHTTSS  RREESSEERRVVEEDD|'''
 			b'''\\(C\\) COPYRIGHT (?:IBM CORPORATION 1981, [0-9]{4}|1981, [0-9]{4} IBM CORPORATION) (?:- )?ALL RIGHTS RESERVED[ \\x0D\\x0A]*(?:[\\x00\\xFF]|US Government Users)'''
 		)
-		self._ibm_later_pattern = re.compile(b'''\\xAA{8}\\x55{8}IBM PC Co\\. BIOS |PS/1 POWER MANAGEMENT\\x00|  IBM Hibernation Code  |SERIAL#SYSTEMBOARDMACHINE''')
+		self._ibm_later_pattern = re.compile(b'''\\xAA\\x55VPD0RESERVE([0-9A-Z]{7})''')
 		self._surepath_pattern = re.compile(b'''SurePath BIOS Version ([\\x20-\\x7E]+)(?:[\\x0D\\x0A\\x00]+([\\x20-\\x7E]+)?)?''')
 		self._apricot_pattern = re.compile(b'''@\\(#\\)(?:Apricot .*|XEN-PC) BIOS [\\x20-\\x7E]+''')
 		self._apricot_version_pattern = re.compile(b'''@\\(#\\)Version [\\x20-\\x7E]+''')
@@ -1530,11 +1530,14 @@ class IBMSurePathAnalyzer(Analyzer):
 		match = self._surepath_pattern.search(file_data)
 		if match:
 			# Extract version.
-			self.version = 'SurePath ' + match.group(1).decode('cp437', 'ignore').strip()
+			self.version = match.group(1)
+			self._debug_print('Found uncompressed version:', self.version)
+			self.version = 'SurePath ' + self.version.decode('cp437', 'ignore').strip()
 
 			# Extract customization as a sign-on if found. (AT&T Globalyst)
 			customization = match.group(2)
 			if customization:
+				self._debug_print('Found AT&T customization:', customization)
 				self.signon = customization.decode('cp437', 'ignore')
 		else:
 			# Special case for Apricot-licensed SurePath.
@@ -1545,18 +1548,35 @@ class IBMSurePathAnalyzer(Analyzer):
 				self.version = 'SurePath'
 
 				# Extract Apricot customization as a sign-on.
-				self.signon = match.group(0).decode('cp437', 'ignore')[4:]
+				customization = match.group(0)
+				self._debug_print('Found Apricot customization:', customization)
+				self.signon = customization.decode('cp437', 'ignore')[4:]
 				match = self._apricot_version_pattern.search(file_data)
 				if match:
 					self.signon = self.signon.strip() + '\n' + match.group(0).decode('cp437', 'ignore')[4:].strip()
-			elif self._ibm_later_pattern.search(file_data):
-				# Later compressed SurePath. No further information.
-				self.version = 'SurePath'
 			else:
-				return False
+				match = self._ibm_later_pattern.search(file_data)
+				if match:
+					# Later compressed SurePath. No further information,
+					# except for an ID string at the end of some of them.
+					self.version = 'SurePath'
+
+					id_string = match.group(1)
+					self.debug_print('Found VPD ID string:', id_string)
+					self.string = id_string.decode('cp437', 'ignore')
+				else:
+					return False
 
 		# Look for entrypoint dates.
+		old_string = self.string
+		self.string = ''
 		NoInfoAnalyzer.get_entrypoint_dates(self, file_data)
+		if old_string:
+			if self.string:
+				self.debug_print('Found entry point date:', self.string)
+				self.string = old_string + '\n' + self.string
+			else:
+				self.string = old_string
 
 		return True