diff --git a/nih2mne/make_meg_bids.py b/nih2mne/make_meg_bids.py
index d20296c..deb32fd 100755
--- a/nih2mne/make_meg_bids.py
+++ b/nih2mne/make_meg_bids.py
@@ -519,7 +519,7 @@ def get_subj_logger(subjid, log_dir=None, loglevel=logging.INFO):
     parser.add_argument('-autocrop_zeros',
                         help='''If files are terminated early, leaving zeros
                         at the end of the file - this will detect and remove
-                        the trailing zeros''',
+                        the trailing zeros.  !!!Files larger than 2G will Fail!!!''',
                         action='store_true'
                         )
     group3 = parser.add_argument_group('Optional Overrides')
diff --git a/nih2mne/utilities/data_crop_wrapper.py b/nih2mne/utilities/data_crop_wrapper.py
index c3293ce..9e608cc 100644
--- a/nih2mne/utilities/data_crop_wrapper.py
+++ b/nih2mne/utilities/data_crop_wrapper.py
@@ -49,13 +49,13 @@ def return_cropped_ds(fname):
     raw = mne.io.read_raw_ctf(fname, system_clock='ignore', preload=True)
     
     crop_time = get_term_time(raw)
-    if endtime == False:
+    if crop_time == False:
         raise RuntimeError('Could not find a terminated timepoint')
-    base = op.dirname(fname)
+    base = op.abspath(op.dirname(fname))
     f_ = op.basename(fname)
-    outdir = op.join(base, 'tmp_cropped')
+    outdir = op.join(base, 'bids_prep_temp','tmp_cropped')
     if not op.exists(outdir): os.mkdir(outdir)
-    fname_out = op.join(outdir, fname) 
+    fname_out = op.join(outdir, f_) 
     cmd = f'newDs -f -time 0 {str(crop_time)} {fname} {fname_out}'
     subprocess.run(cmd)
     return fname_out