Video uploading error with Safari Browser

Hi all,
In “New Video” page user enter the new video details and click “Upload”
button the system is displaying error page with Safari Browser on
Windows machine.

Code : - fold - unfold

  1. NoMethodError in ResourcesController #create_video

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\202�on\025!a\r�"���\r\201��@/��x\tP��J\210܏\025C�(A\a\024����\204���Ŝ\aH\a\376\271\225�A�\232\204<ߚ\020\211B��;1@�…so
on
3. code:
4. controller =>
5. def create_video
6. params[:tag][:name] =
comma_seperated_tags(params[:tag][:name])
7. @video = Video.create_video(params[:video],
params[:thumbnail], params[:title], params[:tag][:name],
params[:category])
8. if @video
9. flash[:success_notice] = “Video uploaded successfully.”
10. else
11. flash[:success_notice] = “Video uploading failed”
12. end
13. @categories = Category.find(:all)
14. render :action => :videos
15. end
16.
17. Model =>
18. def self.create_video(vid,thumbnail,title,tag, category)
19. if valid_video?(vid) && valid_thumbnail?(thumbnail)
20. video_filename = sanitize_attachment_name(vid)
21. thumbnail_filename = sanitize_attachment_name(thumbnail)
22. @video = self.new do |video|
23. video.title = title
24. video.video_name = video_filename
25. video.thumbnail_name = thumbnail_filename
26. video.category_id = category
27. video.tag_list = tag
28. end
29. self.upload_video(vid, video_filename, @video.id) &&
self.upload_thumbnail(thumbnail, thumbnail_filename, @video.id) if
@video.save
30. end
31. rescue
32. false
33. end
34.
35. def self.valid_video?(attachment)
36. if attachment.kind_of? StringIO or attachment.kind_of?
Tempfile
37. true
38. else
39. false
40. end
41. end
42.
43. def self.valid_thumbnail?(attachment)
44. if attachment.kind_of? StringIO or attachment.kind_of?
Tempfile
45. true
46. else
47. false
48. end
49. end
50.
51. def self.sanitize_attachment_name(attachment)
52. File.basename(attachment.original_filename)
53. end
54.
55. def self.upload_video(video, video_name, video_id)
56. video_path = VIDEO_UPLOAD_PATH + “#{video_id}" + video_name
57. File.open(video_path, “wb”) { |f| f.write(video.read) }
58. end
59.
60. def self.upload_thumbnail(thumbnail, thumbnail_name, video_id)
61. thumbnail_path = THUMBNAIL_UPLOAD_PATH + "#{video_id}
” +
thumbnail_name
62. File.open(thumbnail_path, “wb”) { |f| f.write(thumbnail.read)
}
63. end

The error was raising only with safari and works good with FF and IE

did any one have any idea with this issue
help me !!