Poio einai to kalytero CD-R gia eggrafh mousikhs?

[gryllos_001]

einai para ma para polles oi syzhthseis oson afora ta cd-r genikotera kai eidika oson afora to thema ths eggrafhs mousikhs (ennoo cd audio recording) pano se afta to thema ginetai akoma pio polyploko kai dyskolo kyrios oson afora thn epilogh ths kalyterhs markas etsi oste na exoume ta kalytera dynata apotelesmata!<P> an oxi oloi toulaxiston oi pio polloi pou grafoun cd "me to kilo" pou lene tha epilexsoun to pio fthno diskaki pou yparxei sthn agora giati "ola ta adeia cd einai ta idia"...<P> to thema einai poly pio syntheto telika kai katarxas einai shmantiko na anaferthei pos kathe diskaki einai diaforetiko sto teliko akousma eno episis paizoun poly shmantiko rolo h taxythta eggrafhs, to ti recorder einai afto pou tha ektelesei thn eggrafh kai kapoioi alloi paragontes kyrios ston tropo pou tha metaferthoun ta dedomena apo to sklhro disko sto diskaki mas... <P>ena thema pou prepei na anaferthei oson afora to cd-recording einai oi kathgories ton cd oson afora thn epifaneia eggrafhs tous (th xhmikh systash). oi kathgories einai vasika 2:<P>1)Cyanine (kyaninh): afth h xhmikh systash protoxrhsimopoihthike sthn kataskevh cd-r kai xrhsimopoieitai akoma se arketes kathgories cd-r. Os yliko einai diavges kai arketa stathero oson afora thn eggrafh, malista h aktinovolia laser pou apaiteitai gia na graftei afto to diskaki diefkolynei poly to cd-recorder gia na to grapsei! dikes mou dokimes se palio recorder opou eixe grapsei pano apo 1000 diskakia (philips cdd-3610) me diskakia typou "cyanine" egrafe me arketh anesh! h diarkeia zohs tetoion cds ypologizetai se peripou 20-30 xronia! ta meionekthmata tou typou aftou einai oti tetoia diskakia exoun meiomenh anaklastikothta me apotelesma se megales taxythtes eggrafhs na exoume megalyteres pithanothtes emfanishs sfalmaton (kyrios sensing errors) opote to diskaki mas na ginetai axrhsto telika...<P>2)Phthalocyanine: einai mia pio kainourgia filosofia oson afora th systash ton cds... os yliko einai poly pio anaklastiko sthn desmh tou laser opote kalyterh anektikothta apo ta recorders se ypshles taxythtes eggrafhs os yliko einai pio anthektiko kyrios se aktinovolia UV (yperiodeis) opote ektimatai pos h diarkeia zohs tous se pio exseligmenes morfes aftou tou typou (advanced phthalocyanine) sta 200 (!!!) xronia zohs! . Oson afora ta dika mou peiramata se xamhles taxythtes me to philips cdd3610, ta diskakia aftou tou typou htan arketa "dysxonefta" sto cd recorder opote polles fores eite exana to diskaki h eixe sovara sfalmata meta thn eggrafh...<P>Yparxoun para ma para polles meletes oson afora to thema ths taxythtas eggrafhs otan prokeitai na grapsoume ena diskaki me mousika kommatia gia na ta paixsoume meta se ena cd player eite sto spiti eite sto amaxsi h akoma kai se ena studio. gia thn ora an kai ta recorders -opos eggyountai oi kataskevastes- h taxythta eggrafhs den paizei rolo! k omos afto einai lathos...<P>grafontas se poly mikres taxythtes (1x 2x), exsanagkazoume to laser na "kapsei" gia perissoterh ora ena sygkekrimeno block pano sto diskaki mas me apotelesma to laser na afhnei poly isxyro ixnos eggrafhs pano sto cd! sthn 1x taxythta einai megisto kai gia afto den synistatai! oi kalyteres taxythtes gia tetoies periptoseis einai 2x to poly 4x!<P>otan grafoume se megales taxythtes (8x 12x kai vale...) tote h aktina tou laser afhnei pio lepto ixnos pano sto diskaki (diorthonetai omos apo to optimum power calibration pou diathetoun merika recorders) eno episis otan entopistei kapoio provlhmatiko block sto diskaki to laser einai poly pio dyskolo na to markarei os "katestrammeno" opote exoume pithanothta megalyterh gia sfalmata eggrafhs kai akoma k an den xasoume to diskaki mas na exoume "jitter" (afta ta enoxlhtika tsak tsak sto kommati pou einai grammeno sto cd...)... <P>Tora oson afora to poia marka einai h kalyterh, edo paizontai arketa thematakia kyrios oson afora thn poiothta kataskevhs tou idiou tou cd...<P>symfona me mia meleth 2 megalon mhxanikon hxou sthn agglia (nai aftoi oi 2 treloi pou den thymamai ta onomata tous!!!) agorasan para ma para polles markes cd kai grapsane diaforon eidon shmata akoustika pano se afta me cd-recorders anaforas (pou kostizoun merika ekatomyriakia) kai elegxsan me apolyth akriveia poso BLER exei kathe diskaki (BLER=Block Error Rate-rythmos sfalmaton sta blocks tou cd--kathe cd adeio exei peripou 300.000 blocks (kommatakia opou apotyponetai to 0 h to 1) opou to kathe block xora 2bytes)... telika meta apo poly psaxsimo vrethike oti to kalytero diskaki einai to SONY CDQ-74CN (to diskaki pou grafetai maximum sthn 12x taxythta kai oxi afto to kainourgio pou vghke gia 16x), exei to mikrotero BLER kai thn kalyterh anaklastikothta (toulaxiston os tora pou egrapsa ola afta)...<P>shmantikh shmeiosh: sthn erevna pou egine gia ta cd parathrhthike pos yphrxsan diskakia "no name" (afta pou leme xyma diskakia!) pou eixan poly kala apotelesmata sthn eggrafh kai pou merikes fores kontaroxtypousan ta "akriva" aderfia tous!!!<P>ena poly kalo link opou prosferetai ena ergaleiaki gia na deite ti xhmikh systash (cyanine-phthalocyanine) exei to diskaki cd-r pou exete skopo na grapsete vrisketai se afto to link opote mboukarete na to katevasete...<BR> <A HREF="http://www.cdr.cz/software/cdr_identifier/index.html" TARGET=_blank>http://www.cdr.cz/software/cdr_identifier/index.html</A> <P> <P>opoios exei gnomh gia to thema afto mborei na mou apanthsei elefthera!

[trustfm]

geia sou file ! Diabasa me prosoxh ola auta pou grafeis ola polu swsta alla de xerw an exeis katalabei mia polu shmantikh diafora h opoia einai h exhs : otan esu les poiothta 8umisou oti exeis na kaneis me pshfiako hxo kai oxi analogiko dhl an piaseis mia kasseta na thn grapseis me 2x kai oxi me 1x 8a deis stantar xeirotera apotelesmata xeirotero s/n kai alla. Sta cd omws h 8a paizei h de 8a paizei . Apla grafontas to me megaluterh taxuthta exeis PERISSOTERES PI8ANOTHTES na sou parrousiastoun jittler errors ta opoia omws (toulaxiston to diko mou software prassi v2) ta grafei sto telos an uparxoun h oxi. An uparxoun prepei na xanagraftei an den uparxoun einai ola ok ANEXARTHTA an to diskaki einai noname h named. Apla autoi oi aggloi mallon piran 100 cds noname kai 100 sony sou lew px ta 20 cd noname petaxan jittler errors enw mono to 1 sony petaxe jittler error. Apo kei kai pera ola einai idia (apo oti xerw) sigoura bebaia an gia allous logous exwterikous px gratzounies ktl 8a einai pio euais8hta ta noname alla an exei graftei xwris jittler errors oti kai na nai auto na xereis oti einai 100 % omoio.