Roman Korcek wrote: >Hi, > > > >>>>cdrecord: fifo had 11671 puts and 11608 gets. >>>>cdrecord: fifo was 0 times empty and 11400 times full, min fill was >>>>85%. >>>> >>>> > > > >>> I've stayed out of this 'cause I don't have any 800mb media, never >>>tried/seen any. On another count, I prefer to use mkisofs to make the >>>img, then write to cdr, so I've never encountered your missing '-' >>>situation. I'm curious tho.... 85% is awful low. I've never >>>experienced less than 95%, usually 98 to 100%. Have you tried burning >>>to that media at 4x? I've also got some generic CMC Magnetics 700mb >>>cdr's, $12 for a 50 spindle. I don't get good results with 'em over 4x >>>tho. >>> >>> > > > >>yes, I'm burning here ar 8x, not particularly fast but faster than >>mkisofs can really supply data without the risk of buffer underrun, and >>so yes I need to reduce the burn rate , else supply a buffer , if such a >>thing is possible when using a pipe, I don''t know. The lowerst point >>was 85%, most of the time it's 98-100%, but if it drops any lower than >>80% experience tells be to reduce the burn rate or else. However I've >>just spent the last 2 hours running the avi disc file through and there >>does not seem to be any problems. >> >> > >Well, as long as the FIFO doesn't go empty I don't think you need to >worry about anything. The CD-RW has a buffer of its own, so I assume >if FIFO runs out of data there still is at least 2 megs of >drive-internal buffer to be written and FIFO can get filled meanwhile. >Anyways, you can always increase the FIFO using a switch, don't >remember which one, though. (fifo=16 maybe?) > This seems to be correct. I never seem to get buffer underuns so obviously cdrecord is being causious in some way, Yes my writer, Mitsumi in this case has 2mb of buffer, can anyone tell me the logic of the fact that my older writers which could not exceed 4x write spped all had 4mb of buffer built in to them , yet this 24x write speed Minsumi seems only to need 2Mb of buffer, the logic of the setup escapes me. Obvious it doesn't need it , but why ?
I will look into that switch, I didn't know cdrecord had one. John -- John Richard Smith [EMAIL PROTECTED]
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