media files too big?

jason-duncan wrote on 9/11/2015, 5:21 PM
Hello,

I'm trying to burn a dvd-5 but keep getting the message "media files(s) is too big.." I clicked the FIT TO DISC button, but all it does is give me the same message.

Rendered file size to be used in Architect is: 4.54G
"Set Start Item" video is: 35MB
And the total project size, "estimated size" is: 6,246MB 133% of 4.7G

What's a little confusing is under Optimize Disc in DVD-A, the menu is 0.6MB, Set Start Item video is 46MB, and the main video file size is 6,199MB. Why are the same files larger when imported to DVD-A?

Is there a limit on how much you can "fit to disc"

Comments

PeterDuke wrote on 9/11/2015, 6:51 PM
A DVD-5 is 4.7 GB = 4,700,000 bytes maximum. Note that computers often use Gibibytes, Kibibytes, etc. so look at the number of bytes to get the comparable figure.

You say that the main video is 6,199 MB = 6.2 GB so of course it won't fit.

The best practice is NOT to ask DVDA to recompress at any time, but to prepare your video and audio files in Vegas such that they will fit.

At 8 Mbps video bit rate plus AC3 audio and a single fixed menu you can fit about 1 hr 14 mins on a 4.7 GB disc. Scale the video bit rate down for longer videos, and even further if you have more complex menus. Don't try to put more than about 2 hrs of video on such a DVD or the quality may suffer too much. Use two pass variable bit rate rendering with lower bit rates for best quality.
jason-duncan wrote on 9/11/2015, 7:38 PM
The project is 1hr 42min. Fixed menu. I am using pcm audio as this is a music dvd. I know I should render the audio separate. When rendering in Vegas, entering the Customize Template, Video quality slide bar goes from Low (0) to High (31). How do I know where to adjust the slider for an output of 4.35G?
musicvid10 wrote on 9/11/2015, 9:51 PM
Errm, a DVD-5 holds 4.35GB (GiB) of media.
PeterDuke wrote on 9/11/2015, 10:29 PM
"How do I know where to adjust the slider for an output of 4.35G?"

You adjust the render bit rate. Scale according to the data I already gave you, but give a small extra allowance for the fact that you are using PCM rather than AC3.

74/102x8 = 5.8 Mbps. Try using say 8 Mbps max, 5.5 Mbps Average, and 3 Mbps min.
jason-duncan wrote on 9/12/2015, 11:23 AM
Thank you Peter. Adjusting the bit rate worked. I didn't originally select Two-pass, but I did this time. I know I've had projects over 4.7g before and I've always clicked on the "fit to disc" in DVDA and it magically selected whatever compression it needed to fit on a single disc.
jason-duncan wrote on 9/12/2015, 1:59 PM
Ok I spoke too soon. I re-rendered the project and it came out to 3.92g this time. So I assumed it would work. I went to burn and I have the same message. One thing I don't understand is when I insert the file in DVDA, the media is now 5525MB (originally a 3.92g). How much under 4.7g does this have to be?
PeterDuke wrote on 9/12/2015, 6:35 PM
According to Wikipedia, DVD-R, DVD-RW (SS-SL) = 4,707,319,808 bytes and DVD+R, DVD+RW (SS-SL) = 4,700,372,992 bytes.

I caution you again to be aware that MB and GB etc. are used loosely. My recommendation is to always use bytes so that you know exactly what you have.

Disk manufacturers use gigabytes (GB) where 1 GB = 10^9 = 1,000,000,000 bytes.
Computers often use gibibytes (GiB) where 1 GiB = 2^30 = 1,073,741,824 bytes, but confusingly use the abbreviation GB.
EricLNZ wrote on 9/12/2015, 8:05 PM
"How much under 4.7g does this have to be"?

As musicvid10 and Peter have explained your disc only holds 4.35 gb in pc language. Personally I prefer not to pack a disc completely full so I aim for a max of 4.2 gb in pc language. I always Prepare to a Folder and check the size of the folder's contents to see its size is okay. If its too large I'll go back and rerender the video(s) at a lower bitrate then reimport into DVDA. Okay it's time consuming but it's a job worth doing properly.
jason-duncan wrote on 9/13/2015, 10:05 AM
I re-rendered it again and now it's 3,747,612,672 bytes. But when I import this file to DVDA it's now 5047MB. Peter said to pay attention to the Bytes vs MB or GB. I thought I was safe with my new byte size. But I still get the same message.
Former user wrote on 9/13/2015, 12:32 PM
DVDA sometimes reports the wrong size. Go ahead and burn an image and see what size it ends up.

What audio format and bitrate are you using?
jason-duncan wrote on 9/13/2015, 1:36 PM
I set the Max to 5,500,000
Ave to 4,500,000
Min to 192,000

Audio is pcm 16b 48k.

Ok, I'll make an image and see. Thanks.
PeterDuke wrote on 9/13/2015, 6:36 PM
Don't overlook the size of your audio file(s) since you are using PCM. 102 minutes of 48 kHz stereo would require nearly 1.2 GB!.
PAUL JR wrote on 11/6/2015, 4:16 PM
I am having this problem trying to make BluRay discs. This is a new problem that has cropped up since I upgraded Windows7 to Windows10.
PeterDuke wrote on 11/6/2015, 5:18 PM
Paul JR, may I suggest that you start your own topic and give more details of the problem that you are experiencing.