diff --git a/accession.py b/accession.py
index 9a6c414..e2d0ff1 100755
--- a/accession.py
+++ b/accession.py
@@ -70,7 +70,7 @@ def parse_args(args_):
     )
     parser.add_argument(
         '-reference',
-        help='Enter the Filmographic reference number for the representation. This is only relevant when used with -pbcore' 
+        help='Enter the Filmographic reference number for the representation. This is only relevant when used with -pbcore. For multiple works that are represented, seperate each reference number with a + sign eg AF1234+AC456'
     )
     parser.add_argument(
         '-register',
@@ -236,15 +236,20 @@ def main(args_):
         # want to make the pbcore csv, perhaps because the latter already exists.
         if args.csv:
             metadata_dir = os.path.join(new_uuid_path, 'metadata')
-            package_filmographic = os.path.join(metadata_dir, Reference_Number + '_filmographic.csv')
-            insert_filmographic(args.csv, Reference_Number, package_filmographic)
-            ififuncs.generate_log(
-                sipcreator_log,
-                'EVENT = Metadata extraction - eventDetail=Filmographic descriptive metadata added to metadata folder, eventOutcome=%s, agentName=accession.py' % (package_filmographic)
-            )
-            ififuncs.manifest_update(sip_manifest, package_filmographic)
-            ififuncs.sha512_update(sha512_manifest, package_filmographic)
-            print('Filmographic descriptive metadata added to metadata folder')
+            if '+' in Reference_Number:
+                reference_list = Reference_Number.split('+')
+            else:
+                reference_list = [Reference_Number]
+            for ref in reference_list:
+                package_filmographic = os.path.join(metadata_dir, ref + '_filmographic.csv')
+                insert_filmographic(args.csv, ref , package_filmographic)
+                ififuncs.generate_log(
+                    sipcreator_log,
+                    'EVENT = Metadata extraction - eventDetail=Filmographic descriptive metadata added to metadata folder, eventOutcome=%s, agentName=accession.py' % (package_filmographic)
+                )
+                ififuncs.manifest_update(sip_manifest, package_filmographic)
+                ififuncs.sha512_update(sha512_manifest, package_filmographic)
+                print('Filmographic descriptive metadata added to metadata folder')
         ififuncs.generate_log(
             sipcreator_log,
             'EVENT = accession.py finished'
@@ -254,18 +259,19 @@ def main(args_):
         ififuncs.manifest_update(sip_manifest, dfxml)
         ififuncs.sha512_update(sha512_manifest, dfxml)
         if args.pbcore:
-            makepbcore_cmd = [accession_path, '-p', '-user', user, '-reference', Reference_Number]
-            if args.parent:
-                makepbcore_cmd.extend(['-parent', args.parent])
-            if args.acquisition_type:
-                makepbcore_cmd.extend(['-acquisition_type', args.acquisition_type])
-            if args.donor:
-                makepbcore_cmd.extend(['-donor', args.donor])
-            if args.donor:
-                makepbcore_cmd.extend(['-depositor_reference', args.depositor_reference])
-            if args.donation_date:
-                makepbcore_cmd.extend(['-donation_date', args.donation_date])
-            makepbcore.main(makepbcore_cmd)
+            for ref in reference_list:
+                makepbcore_cmd = [accession_path, '-p', '-user', user, '-reference', ref]
+                if args.parent:
+                    makepbcore_cmd.extend(['-parent', args.parent])
+                if args.acquisition_type:
+                    makepbcore_cmd.extend(['-acquisition_type', args.acquisition_type])
+                if args.donor:
+                    makepbcore_cmd.extend(['-donor', args.donor])
+                if args.donor:
+                    makepbcore_cmd.extend(['-depositor_reference', args.depositor_reference])
+                if args.donation_date:
+                    makepbcore_cmd.extend(['-donation_date', args.donation_date])
+                makepbcore.main(makepbcore_cmd)
     else:
         print('not a valid package. The input should include a package that has been through Object Entry')
 
diff --git a/ififuncs.py b/ififuncs.py
index c42e9bc..e3112ac 100644
--- a/ififuncs.py
+++ b/ififuncs.py
@@ -958,24 +958,13 @@ def get_accession_number():
 
 def get_reference_number():
     '''
-    Asks user for a Filmographic reference number. A valid number (af1####) must be provided.
+    Asks user for a Filmographic reference number. Due to the variety of reference numbers, validation
+    will be removed for now.
     '''
-    reference_number = False
-    while reference_number is False:
-        reference_number = input(
-            '\n\n**** Please enter the Filmographic reference number of the representation\n\n'
-        )
-        if reference_number[:3] != 'af1':
-            print(' - First two characters must be \'af\' and the last five characters must be five digits')
-            reference_number = False
-        elif len(reference_number[2:]) != 5:
-            reference_number = False
-            print(' - First two characters must be \'af\' and last five characters must be five digits')
-        elif not reference_number[2:].isdigit():
-            reference_number = False
-            print(' - First two characters must be \'af\' and last five characters must be five digits')
-        else:
-            return reference_number.upper()
+    reference_number = input(
+        '\n\n**** Please enter the Filmographic reference number of the representation- if there is more than one work that is represented, seperate them with an ampersand, eg af1234&aa675\n\n'
+    )
+    return reference_number.upper()
 
 def get_contenttitletext(cpl):
     '''
diff --git a/makepbcore.py b/makepbcore.py
index 3f70d6d..68d66d5 100755
--- a/makepbcore.py
+++ b/makepbcore.py
@@ -366,7 +366,7 @@ def main(args_):
                 metadata_dir = root
             elif os.path.basename(root) == 'logs':
                 logs_dir = root
-        csv_filename = os.path.join(metadata_dir, Accession_Number + '_pbcore.csv')
+        csv_filename = os.path.join(metadata_dir, Accession_Number + '_%s_pbcore.csv' % Reference_Number)
         sipcreator_log = os.path.join(
             logs_dir, instantiationIdentif + '_sip_log.log'
         )