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jimdagys
Member
Joined: 12 Nov 2003
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I saw in the store 720 mb and even 830 mb blank Cds. I don't understand how this can be since the outside diameter of the plastic disk is fixed to a standard. Can someone please explain this.
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MOVIEGEEK
The Dude
Joined: 08 Mar 2002
Location: CA,USA
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The spaces between the data is narrower.
Ritek made 90min and 99min CD-R but they are hard to find nowadays,most writers and players supported the 90min CD-R's but the 99min ones were a crap shoot because of the high tolerances required.
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jimdagys
Member
Joined: 12 Nov 2003
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I thought the foil (data part) of the cd is homogenious and didn't contain any tracks until it is burned. So I don't see how the "data can be narrower".
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MOVIEGEEK
The Dude
Joined: 08 Mar 2002
Location: CA,USA
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The writer makes the data narrower but you have to enable "overburning" in the burn program.Nero was(is?) able to overburn to 99min and so was Fireburner.You can also use 80min CD-R's to burn 780MB by using mode 2.
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AlanHK
Member
Joined: 25 Apr 2006
Location: Hong Kong
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| jimdagys wrote: |
| I thought the foil (data part) of the cd is homogenious and didn't contain any tracks until it is burned. So I don't see how the "data can be narrower". |
http://www.pctechguide.com/33CDR-RW_Disc_capacities.htm
| Quote: |
| CD-R's have a pre-formed spiral track, with each sector address hard-coded into the media itself. |
Last edited by AlanHK on May 31, 2009 22:49, edited 2 times in total
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AlanHK
Member
Joined: 25 Apr 2006
Location: Hong Kong
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| MOVIEGEEK wrote: |
| The writer makes the data narrower but you have to enable "overburning" in the burn program.Nero was(is?) able to overburn to 99min and so was Fireburner.You can also use 80min CD-R's to burn 780MB by using mode 2. |
"Overburning" is not done by making the track narrower, that can't be changed on a CDR blank at all.
It just burns closer to the outside edge.
http://www.pctechguide.com/33CDR-RW_Overburning.htm
| Quote: |
| Overburning, also known as oversizing, is basically writing more audio or data to CD than its official capacity by utilising the area reserved for the lead-out and perhaps even a few blocks beyond that. |
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MOVIEGEEK
The Dude
Joined: 08 Mar 2002
Location: CA,USA
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This article explains the problems with 90/99min CD-R:
http://www.feurio.com/English/faq/faq_writer_99mincdr.shtml
| Quote: |
| Apart from the track which is inevitably too narrow on 99 minute CD-Rs (And thus the problem that many CD players can't even find the track and thus when playing the CD back may "jump") there are several much more serious problems: |
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AlanHK
Member
Joined: 25 Apr 2006
Location: Hong Kong
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| MOVIEGEEK wrote: |
| Ritek made 90min and 99min CD-R but they are hard to find nowadays,most writers and players supported the 90min CD-R's but the 99min ones were a crap shoot because of the high tolerances required. |
I bought "100 min/900 MB" CDRs here, brand was "Sky Pro" if that means anything. Never used them to full capacity, but the CDs I did burn were readable.
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hech54
CONFUSED
Joined: 26 Jul 2001
Location: Yank in Europe
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I use the TDK 800BM/90 minute discs quite often. Burn to damn near full and they play in everything I've ever tried them in. LG Burners, Prassi Ones, and oversized media.....can't beat it.
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Onceler2
Member
Joined: 09 Jan 2008
Location: United States
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I bought sky pro 99min cdrs that worked great for audio cd and vcd but if you burned them as data cds they would be partially unreadable
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