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About necrocracker

  • Birthday 03/04/1978

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    New York

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  1. The problem is that MPEG2 is variably compressed. You can have a full DVD-5 that has any where from 60min to 180min of video. It also depends on what type of audio you use and other factors. I also think that your SP definition will vary between hardware and software. I think it would seem more confusing to some users to see this method. At the same time, the amount of 44.1k 16b CDA audio I can fit on a DVD has much meaning either. Maybe just don't show the time for anything other than CD?
  2. I was always under the impression that when referring to any optical media CD/DVD/BD it was always disc with a "c". When talking about magnetic media 3 1/2" & 5 1/4" floppy or Hard Drive it was disk with a "k" as in diskette. Can anybody back this up or have I been misinformed for many years? I'm not sure why I care, but I feel I need to know for sure. EDIT: Just found these links. I guess they sum it up. http://docs.info.apple.com/article.html?artnum=302152 http://en.wikipedia.org/wiki/Disc_or_disk_%28spelling%29
  3. Thanks, If my final medium is going to be DVD-R, I often use a max of less than 8. If a pressed disc is the end, 9.8 is usually where I end up. I often have discs with 16bit Stereo PCM, Dolby 5.1 and DTS 5.1 along with 7 or more subtitle tracks. If I kept the max to 8, I wouldn't have enough head room for the video. Sometimes if you've got it, use it and let the players sort it out.... On a side not, the correct spelling of disc (not disk ), when referring to optical media comes up every time in the spell checker. I had to add it to the dictionary. Weird?!?
  4. DVD video has a maximum bandwidth that must be respected if your disc is intended for playback on a set-top player. This means that the fastest your DVD player can read the data from the disc is 9.8Mbps. This includes Video, Audio, Subtitles and the like. This is why your DVD authoring program (DVDauthorgui) needs to compress the video into MPEG2 and probably the audio into AC-3. The compression/encoding stage is where your quality is set. The higher your bit-rate the lower your compression and the better the quality. Keeping in mind the 9.8Mbps (mega bits per second) limit for DVD-V, if you do the math, your program would need to be longer than 60 minutes before you would even be able to consider a Dual Layer disc. 9.8Mbps / 8bps x 60s x 63m = 4,630,500 bytes. Keep in mind that DVDs are measured in base 10 and your hard drive looks at base 2, so even though your disc says 4.7GB, it will only hold a file that is 4.36GB from your computers HD. Also, a Dual Layer disc is not double a single layer disc. Because of the track spacing that is needed for a DL disc, each layer only holds 4.2GB for a total of 8.4GB. It is still a lot of space, but at max bit rate, a single layer can hold 63min and a DL will hold 114min. You also need to worry about a layer break, the spot in the video where the disc switches from layer 0 to layer 1. Last, I don't recommend maxing out your bit rate if your final product will be DVD-R. Many times recordable media is not as easily read as a pressed DVD. If you max out your quality, you don't leave your player with enough time to error correct on playback and can end up with stuttering or jumping video and audio. If you take the time and use a good encoder, you can get very nice quality from mid to low bit rates. Sorry for all the info. Maybe to much, but I hope it covers your issue!
  5. Thanks for the firmware link! SONY BDRW BWU-100A 1.0e (ATA) "A Firmware Has Being Update." Now I just need to get my hands on some BD-R's to play with before anybody comes looking for the drive.
  6. Nothing important here. Just thought this was amusing. I needed to burn four discs from an Admin PC (Dell). It only had a ROM drive and I didn't feel like transfering files to another machine so here's where I ended up. I 13:16:21 Source Device: [1:0:0] SONY BDRW BWU-100A 1.0a (D:) (ATA) I 13:16:21 Source Media Type: DVD-R (Book Type: DVD-R) (Disc ID: ProdiscF01) (Speeds: 4x, 6x) The only spare drive I could find was this cool new BD drive and the only discs around were some junky Prodisc. :& I threw the drive in the Dell (no tools needed) and ImgBurn saw the drive, burned and verified, no questions asked. Gotta Love IB! Thanks!
  7. Is the disc actually "blank" or is it full and just not readable? An image that size should fill the entire disc and maybe it just looks like it's blank. If you compare the bottom of this disc to a new disc, are they the same color or is one lighter? If you put the disc back into the drive after a burn what does the disc info window say? If the disc is really blank, then it would seem that your drive is just pretending to burn the disc and that's why it can't verify it. In this case, I would probably recommend a new drive.
  8. I read the entire article and ner0 wasn't mentioned once! It makes my top 5. Bloated good for nothing junk!
  9. If any of you are a fan of Futurama, they explored this topic in one of the episodes. Fry goes back in time and ends up accidnetaly killing his "grandfather". He comforts his grieving grandmother a little too much and BAM, he's his own grandfather. It somehow made perfect sense. Ahhh, cartoons.....
  10. Your drive only supports burning at 4x, 6x and 8x to this media. Since you set requested to burn at 2.4x, your drive is setting to the closest supported speed, 4x. A drive can't usually burn at the requested speed for the entire process so the average is usually lower than the max. In this case 3.8x. You could look to see if there is a firmware update for your drive that would allow for other burning speeds if you are concerned about it. Normally on DL media, the slower the burn the better. This allows the drive to spend more time burning each pit on the disc which creates a better quality burn. If you get good burns with 4x, that suits your purpose, then use 4x. As long as the disc verifies correctly and plays ok on your equipment, then that's all that really matters. I burn all my DL discs at 4x and rarely verify. I'm a little impatient sometimes.
  11. Some software DVD players will play from an ISO image file. Many won't. An ISO is just a package that contains all the files as they would appear on the disc. There is no compression involved and should be the same size as the original DVD
  12. That's kind of what I figured, but hoped otherwise. Thanks again.
  13. Iso is the extension of an image file. IFO is a file type used for DVD Video. They should live inside a VIDEO_TS folder and contain InFOrmation about the video, audio and general settings of a DVD Video.
  14. Possibly this isn't a bug with ImgBurn, but with WinNT. The "Filter Drivers Load Order" option doesn't show up on any (I have three that just won't die!) of my NT machines. Is this an issue with NT not supporting Filter Drivers or should it be there. It seems fine on XP. Thanks
  15. I think you get so used to reading poor typing that it's almost more natural than reading complete accurate sentences.
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