Help FAQ Page

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Frequently Asked Questions:

This is our online knowledge base and FAQ that may answer many of the most common issues. If you are unable to find a solution to a question, free free submit a support ticket contacting us directly.


What are the "Karaoke", the "Professional" and the "Video" Packs?

We put at our clients disposal, to be immediately downloaded, 3 different kind of products for the same aria: the Karaoke Pack, the Professional Pack and the Video Pack. The "Karaoke Pack" is aimed at opera fans or classical singers wanting to experience the emotion of singing the most famous opera arias, either for personal accomplishment or to spend a pleasant evening in the the company of friends and includes the Piano accompaniment track and the Karaoke CD+G file. For those classical singers instead who would like to improve their knowledge of a specifica aria, it is possible to download two other useful learning tools; a "Vocal Line Track" and a "Diction Track", both found in the "Professional Pack" (please note the Professional Pack also consists of the Karaoke Pack, in other words, includes the piano accompaniment and the cdg file). The "Video Pack" is intended for users that own a smartphone (IPhone, Android, Ipad etc.) and are looking for a product that can be easily reproduced on their devices. If you want to find out more about the Karaoke, Professional, and Video Packs, please give a look at our Comparison Table.

What kind of files do you sell and how many programs do I need to play/view them?

A: Basically, we offer ready for download two files types:

  • The files that have a .mp3 extension (The extension defines the file "type", eg text file, executable file or graphic file and is determined by the last three letters of the file name, .txt .jpg .zip .mp3 etc.), contained in both the Karaoke and Professional Packs are audio files that can be reproduced on the computer using a normal multimedia player. Every operating system like Windows Xp or Mac OSX has a multimedia player program (Windows Media Player, Apple ITunes etc.).
  • the other type of file that we offer is the cdg file or the so called karaoke file. This file, to use together with the audio file, contains the text of the aria which illuminates in syncronisation with the music. For the users of Opera Karaoke it is enough to extract the contents of the Pack you have downloaded in a directory of your choice (usually Desktop or Documents) and use a program like Karaoke Builder Player or or Karafun to reproduce this type of file. Mac users can use a program like Kjams Lite.
  • Opera-Karaoke group all the files ready for the download in a single zip file. To extract this type of file you may have to install a utility like 7-Zip (Freeware), WinZip or Winrar (Shareware) even though nearly all Operating Systems are capable of extracting this file type without installing other programs.

Do you sell, or will you have the intention to sell, products relative to other musical genres?

No, actually we are focusing our interest only on the operatic repertoire. We have planned in the near future to add to our Catalog some opera roles.

Can I use your tracks for professional purposes (Commercial Cds, professional performances etc)?

You have to pay a fee for using our tracks for commercial purposes. More informations in this page.

Can I make a request?

Usually we don't give this kind of service, however, if you need a track custom made for you and our staff is not overloaded with work, we can create one for you per your specs. Our rates depend on the type of work involved; in this case contact us directly. We have also a special section in our Forum in our Forum, the most popular requests posted by our visitors will be produced for free by our staff.


Do you make and send custom CDs to your customers?

No, at this time we sell in our site only downloadable products. Anyway, as explained below, it's quite simple to create by yourself custom Cds using our products.

What is a Mp3 file?

MP3 is a highly compressed computer file format used for the storage and transmission of sound and music. MP3 uses the same type of highly efficient and extremely clever fractal-based algorithms for sound compression as JPG does for photographs. Just as the JPG algorithms were designed specifically to compress photographs efficiently, so the MP3 algorithms were designed specifically to compress sound and music efficiently. Like JPG, MP3 is a slightly lossy format, meaning that the final sound is not quite identical to the source. However, the degradation occurs in a very controllable manner and so can easily be kept to a level below that discernible to the listener. As with JPG, there is no loss when copying or transmitting MP3 files, only when creating or editing them. All the mp3 files sold in our site are encoded in high quality MP3 format. The "piano accompaniment track" is stereo, the "vocal line" track and the "diction" track are mono.

Can I burn my MP3 music files to a CD?

Yes, of course. Nowadays, every burning program allows you to burn your mp3 tracks into a CDR. With your preferred burning program, choose to create an Audio CD Project, then drag and drop your mp3 tracks into the project window and the program will decode the tracks for you. After that, you will be able to burn your cdr and listen to your new accompaniment cd! You can follow also this guide.

The tempo of the song is too slow/fast. What can I do?

In our sing along tracks, we tried to follow the opera traditions and some famous recordings in the choice of the tempo, however every aria's interpretation can be very different. In this case you can change the tempo of the track without changing the pitch. There is a function in modern audio editors programs (usually named "Time Stretch") that easily allow you to do this without changing the aria's pitch . For example, with Audacity, import your audio track in your project, select it (or select the portion of the track of wich you want to change the tempo) and, from the menu "Effect", select "Change Tempo". In the following dialog box enter positive values for increasing the tempo, negative for decreasing it. You can find also an exhaustive step-by-step tutorial for doing this job.

I need to record my voice over the accompaniment track. Is it possible?

Yes. For doing this, you need an multitrack audio editor program. Although you can achieve this result using programs such Steinberg Wavelab, Adobe Audition or Sony Soundforge, you can work also with a freeware program called Audacity, our favourite sound editor. If you need to record your performance over the accompaniment track you downloaded from our site (for a competition, audition ecc.), has published a step-by-step tutorial for doing this job.

Cadenza is too long/short in the accompaniment track.

Please read our Tutorial

What is a CDG file?

CD+G files (*.cdg) are special files that contain song lyrics and synchronization data only. Just as MP3 is a way to store the audio of a CD+G disc, a CDG file is a way to store the graphics portion. A CD+G is a special Audio Compact disc that contains graphics data in addition to the audio data on the disc. The disc can be played on a regular Audio CD player, but when played on a special CD+G player, can output a graphics signal (typically, the CD+G player is hooked up to a television set).

What is Mp3+G?

The MP3+G consists of two audiofiles, the Mp3 audio track and a separate cdg file that contains the graphic data in .bmp format. These two files combined occupy much less disc space than a standard CDG track. The two files of an MP3+G (one with a .cdg extension and one with a .mp3 extension) must have exactly the same "basename" (for example "nessun_dorma.mp3" and "nessun_dorma.cdg").

I've downloaded the karaoke pack. Can I create a CD+G disk now?

A: Yes. You need a program called MP3+G Toolz, a compatible cd-burner and a burning program (CDRWin or Alcohol 120%).

A good resource on this argument is Karaoke Tutor in which you will find how to create CDG discs from MP3+G


What kind of program do I need to use to play cdg files on my computer?

A: You need a program like Karaoke Builder Player (freeware) or Karafun (Even better, it allows you to cange the tempo/pitch) in realtime). Simply download, install and run it; open your cdg file (remember that the corresponding mp3 file has to be in the same directory) and that's it! Macintosh users can download a program like QMidi or Kjams Lite; the Lite version (free) has all the feature you need.


Can I play CD+G disks on my standalone DVD player?

A: Nearly all DVD Players are NOT compatible with the CDG disks, the audio track has non problem but the video track with the word imagines can't be read. If you wish to use our products with your normal DVD player, please consider to Buy the "Video Pack" of the aria.


When I try to play the cdg file I only see the words but there is no music. How come?

Remember that the cdg files contain only images of the words, the music resides on the mp3 files. the role of the CD+G Player is to read and reproduce together cdg files and mp3 and to sync them. For this reason it is essential that the two files have the same name (eg. nessundorma.mp3 and nessundorma.cdg) and that they are found in the same directory. If you still have problems it could depend on the sound card configuration (eg. volume set to zero etc.)

I would like to karaoke with both the piano accompaniment and the vocal line track (or diction track) simultaneously. How can I do this?

A: Using Audacity you must create a new audiofile in which the piano accompanimet track and the "vocal line" track are joined together (this operation is called "audio mixdown"). You can also follow our audio mixdown tutorial.


How can I do karaoke following the vocal line track?

A: All you have to do is to rename the file with extension cdg giving it the name of the audiotrack you want to reproduce with the subtitles. To rename the file, select it with the right mous button and select the "Rename" option.


When I fast-forward the cdg files the player goes out of sync. Why?

A: It happens sometimes when you use mp3 files encoded in variable bitrate (VBR). Our arias are encoded at constant bitrate (CBR), so this inconvenience should not appear.


What should I do if my computer crashes, files are accidentally deleted, or I lose my purchased music files for any other reason?

 A: After your purchase you can always write to us and request an authorization to redownload our products. Remember to write down your "Checkout order number in order to download again your files.


Where do I download my order?

After you complete the purchase procedure, you will be automatically sent to a download page, where you can download your tracks. The download links will also be sent to you via email. You can also access your order by clicking here.


Is my credit/check card or check information secure?

 A: Opera-karaoke uses the 2checkout's service for online transactions. On selecting 2CO as your method of payment you will be redirected to 2CO's secure servers. 2CO accepts customer orders via online checks, Visa, MasterCard, Discover/Novus, American Express, Diners Club, JCB and debit cards with the Visa and MasterCard (2co will also accept Electronic Check Drafts - also known as ACH or Digital Checks and FXSource - Direct electronic funds transfer service). Follow the directions on the 2CO site to complete your transaction. Once payment is confirmed you should recieve your file instantly. Delays may be caused when fraud prevention investigate suspicious orders., Inc. (2CO) is the online distribution center for over 300,000 tangible or digital products and services. Established in 1999 and headquartered in Columbus, Ohio, 2CO provides turnkey e-commerce solutions to thousands of business customers around the world. 2CO's proprietary technology supports back-office functions including financial reporting, tracking, fraud prevention, affiliate tracking, customer service and sales tracking.


Is there a charge for paying online?

 A: No, this service is provided at no cost to you.


Which payment methods do you accept?

A: currently accepts: VISA, MasterCard, American Express, PAYPAL, Discover/Novus, Diners Club, JCB, all derivatives of these brands are also supported. 2CO will also accept: Electronic Check Drafts - also known as ACH or Digital Checks. FXSource - Direct electronic funds transfer service.


What currency do you use in your pages?

All our prices are in U.S. Dollars (USD)


Can I pay in my local currency?

By default, all prices on our web site are shown in the US (USD) dollars. However, you may pay in any other currency too, the currency conversion will be done for you during the Checkout phase.


I forgot my Login Details

 A: Simply go to this page and fill in the form typing your email address used during your subscription. We will send you a message containing your login details.


If I buy the membership can I download everything from your Catalog

Yes, if you become a member you can download every item (of course Karaoke pack, Professional Pack and Video Pack) from our Catalog. Even more, you can redownload the items for an unlimited number of times during the year of subscription.


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