diff --git a/src/upscaler.py b/src/upscaler.py
index dbbfad9..88d60d7 100755
--- a/src/upscaler.py
+++ b/src/upscaler.py
@@ -4,7 +4,7 @@
 Name: Video2X Upscaler
 Author: K4YT3X
 Date Created: December 10, 2018
-Last Modified: May 11, 2020
+Last Modified: May 12, 2020
 
 Description: This file contains the Upscaler class. Each
 instance of the Upscaler class is an upscaler on an image or
@@ -584,24 +584,33 @@ class Upscaler:
                     # if failed to copy streams
                     # use file with only video stream
                     except subprocess.CalledProcessError:
+                        traceback.print_exc()
                         Avalon.error(_('Failed to migrate streams'))
                         Avalon.warning(_('Trying to output video without additional streams'))
 
                         if input_file_mime_type == 'image/gif':
-                            (self.upscaled_frames / self.ffmpeg_object.intermediate_file_name).replace(output_path)
+                            # copy will overwrite destination content if exists
+                            shutil.copy(self.upscaled_frames / self.ffmpeg_object.intermediate_file_name, output_path)
 
                         else:
                             # construct output file path
-                            output_video_path = output_path.parent / f'{output_path.stem}{self.ffmpeg_object.intermediate_file_name.suffix}'
+                            output_file_name = f'{output_path.stem}{self.ffmpeg_object.intermediate_file_name.suffix}'
+                            output_video_path = output_path.parent / output_file_name
 
-                            # if output file already exists, cancel
+                            # if output file already exists
+                            # create temporary directory in output folder
+                            # temporary directories generated by tempfile are guaranteed to be unique
+                            # and won't conflict with other files
                             if output_video_path.exists():
-                                Avalon.error(_('Output video file exists, aborting'))
+                                Avalon.error(_('Output video file exists'))
 
-                            # otherwise, rename intermediate file to the output file
-                            else:
-                                Avalon.info(_('Writing intermediate file to: {}').format(output_video_path.absolute()))
-                                (self.upscaled_frames / self.ffmpeg_object.intermediate_file_name).rename(output_video_path)
+                                temporary_directory = pathlib.Path(tempfile.mkdtemp(dir=output_path.parent))
+                                output_video_path = temporary_directory / output_file_name
+                                Avalon.info(_('Created temporary directory to contain file'))
+
+                            # copy file to new destination
+                            Avalon.info(_('Writing intermediate file to: {}').format(output_video_path.absolute()))
+                            shutil.copy(self.upscaled_frames / self.ffmpeg_object.intermediate_file_name, output_video_path)
 
                 # increment total number of files processed
                 self.cleanup_temp_directories()