diff --git a/deemix/decryption.js b/deemix/decryption.js
index 7918862..a9daa2c 100644
--- a/deemix/decryption.js
+++ b/deemix/decryption.js
@@ -1,5 +1,6 @@
 const got = require('got')
 const {_md5, _ecbCrypt, _ecbDecrypt, generateBlowfishKey, decryptChunk} = require('./utils/crypto.js')
+const { DownloadCanceled, DownloadEmpty} = require('./errors.js')
 
 const { USER_AGENT_HEADER, pipeline } = require('./utils/index.js')
 
@@ -143,27 +144,11 @@ async function streamTrack(outputStream, track, start=0, downloadObject, listene
   }
 }
 
-class DownloadEmpty extends Error {
-  constructor() {
-    super()
-    this.name = "DownloadEmpty"
-  }
-}
-
-class DownloadCanceled extends Error {
-  constructor() {
-    super()
-    this.name = "DownloadCanceled"
-  }
-}
-
 module.exports = {
   generateStreamPath,
   generateStreamURL,
   generateCryptedStreamURL,
   reverseStreamPath,
   reverseStreamURL,
-  streamTrack,
-  DownloadEmpty,
-  DownloadCanceled
+  streamTrack
 }
diff --git a/deemix/downloader.js b/deemix/downloader.js
index 7257a2f..c30c790 100644
--- a/deemix/downloader.js
+++ b/deemix/downloader.js
@@ -5,6 +5,7 @@ const { tagID3, tagID3v1, tagFLAC } = require('./tagger.js')
 const { USER_AGENT_HEADER, pipeline, shellEscape } = require('./utils/index.js')
 const { DEFAULTS, OverwriteOption } = require('./settings.js')
 const { generatePath, generateAlbumName, generateArtistName, generateDownloadObjectName } = require('./utils/pathtemplates.js')
+const { PreferredBitrateNotFound, TrackNot360, DownloadFailed, ErrorMessages} = require('./errors.js')
 const { TrackFormats } = require('deezer-js')
 const { WrongLicense, WrongGeolocation } = require('deezer-js').errors
 const got = require('got')
@@ -558,7 +559,7 @@ class Downloader {
             }
           }
           e.errid += "NoAlternative"
-          e.message = errorMessages[e.errid]
+          e.message = ErrorMessages[e.errid]
         }
         result = {error:{
           message: e.message,
@@ -690,59 +691,8 @@ class Downloader {
   }
 }
 
-class DownloadError extends Error {
-  constructor() {
-    super()
-    this.name = "DownloadError"
-  }
-}
-
-const errorMessages = {
-    notOnDeezer: "Track not available on Deezer!",
-    notEncoded: "Track not yet encoded!",
-    notEncodedNoAlternative: "Track not yet encoded and no alternative found!",
-    wrongBitrate: "Track not found at desired bitrate.",
-    wrongBitrateNoAlternative: "Track not found at desired bitrate and no alternative found!",
-    wrongLicense: "Your account can't stream the track at the desired bitrate.",
-    no360RA: "Track is not available in Reality Audio 360.",
-    notAvailable: "Track not available on deezer's servers!",
-    notAvailableNoAlternative: "Track not available on deezer's servers and no alternative found!",
-    noSpaceLeft: "No space left on target drive, clean up some space for the tracks.",
-    albumDoesntExists: "Track's album does not exsist, failed to gather info.",
-    notLoggedIn: "You need to login to download tracks.",
-    wrongGeolocation: "Your account can't stream the track from your current country."
-}
-
-class DownloadFailed extends DownloadError {
-  constructor(errid, track) {
-    super()
-    this.errid = errid
-    this.message = errorMessages[errid]
-    this.name = "DownloadFailed"
-    this.track = track
-  }
-}
-
-class TrackNot360 extends DownloadError {
-  constructor() {
-    super()
-    this.name = "TrackNot360"
-  }
-}
-
-class PreferredBitrateNotFound extends DownloadError {
-  constructor() {
-    super()
-    this.name = "PreferredBitrateNotFound"
-  }
-}
-
 module.exports = {
   Downloader,
-  DownloadError,
-  DownloadFailed,
   downloadImage,
-  getPreferredBitrate,
-  TrackNot360,
-  PreferredBitrateNotFound
+  getPreferredBitrate
 }
diff --git a/deemix/errors.js b/deemix/errors.js
new file mode 100644
index 0000000..28c65c4
--- /dev/null
+++ b/deemix/errors.js
@@ -0,0 +1,182 @@
+class DeemixError extends Error {
+  constructor(message) {
+    super(message)
+    this.name = "DeemixError"
+  }
+}
+
+class GenerationError extends DeemixError {
+  constructor(link, message) {
+    super(message)
+    this.link = link
+    this.name = "GenerationError"
+  }
+}
+
+class ISRCnotOnDeezer extends GenerationError {
+  constructor(link) {
+    super(link, "Track ISRC is not available on deezer")
+    this.name = "ISRCnotOnDeezer"
+    this.errid = "ISRCnotOnDeezer"
+  }
+}
+
+class NotYourPrivatePlaylist extends GenerationError {
+  constructor(link) {
+    super(link, "You can't download others private playlists.")
+    this.name = "NotYourPrivatePlaylist"
+    this.errid = "notYourPrivatePlaylist"
+  }
+}
+
+class TrackNotOnDeezer extends GenerationError {
+  constructor(link) {
+    super(link, "Track not found on deezer!")
+    this.name = "TrackNotOnDeezer"
+    this.errid = "trackNotOnDeezer"
+  }
+}
+
+class AlbumNotOnDeezer extends GenerationError {
+  constructor(link) {
+    super(link, "Album not found on deezer!")
+    this.name = "AlbumNotOnDeezer"
+    this.errid = "albumNotOnDeezer"
+  }
+}
+
+class InvalidID extends GenerationError {
+  constructor(link) {
+    super(link, "Link ID is invalid!")
+    this.name = "InvalidID"
+    this.errid = "invalidID"
+  }
+}
+
+class LinkNotSupported extends GenerationError {
+  constructor(link) {
+    super(link, "Link is not supported.")
+    this.name = "LinkNotSupported"
+    this.errid = "unsupportedURL"
+  }
+}
+
+class LinkNotRecognized extends GenerationError {
+  constructor(link) {
+    super(link, "Link is not recognized.")
+    this.name = "LinkNotRecognized"
+    this.errid = "invalidURL"
+  }
+}
+
+class DownloadError extends DeemixError {
+  constructor() {
+    super()
+    this.name = "DownloadError"
+  }
+}
+
+const ErrorMessages = {
+    notOnDeezer: "Track not available on Deezer!",
+    notEncoded: "Track not yet encoded!",
+    notEncodedNoAlternative: "Track not yet encoded and no alternative found!",
+    wrongBitrate: "Track not found at desired bitrate.",
+    wrongBitrateNoAlternative: "Track not found at desired bitrate and no alternative found!",
+    wrongLicense: "Your account can't stream the track at the desired bitrate.",
+    no360RA: "Track is not available in Reality Audio 360.",
+    notAvailable: "Track not available on deezer's servers!",
+    notAvailableNoAlternative: "Track not available on deezer's servers and no alternative found!",
+    noSpaceLeft: "No space left on target drive, clean up some space for the tracks.",
+    albumDoesntExists: "Track's album does not exsist, failed to gather info.",
+    notLoggedIn: "You need to login to download tracks.",
+    wrongGeolocation: "Your account can't stream the track from your current country."
+}
+
+class DownloadFailed extends DownloadError {
+  constructor(errid, track) {
+    super()
+    this.errid = errid
+    this.message = ErrorMessages[errid]
+    this.name = "DownloadFailed"
+    this.track = track
+  }
+}
+
+class TrackNot360 extends DownloadError {
+  constructor() {
+    super()
+    this.name = "TrackNot360"
+  }
+}
+
+class PreferredBitrateNotFound extends DownloadError {
+  constructor() {
+    super()
+    this.name = "PreferredBitrateNotFound"
+  }
+}
+
+class DownloadEmpty extends DeemixError {
+  constructor() {
+    super()
+    this.name = "DownloadEmpty"
+  }
+}
+
+class DownloadCanceled extends DeemixError {
+  constructor() {
+    super()
+    this.name = "DownloadCanceled"
+  }
+}
+
+class TrackError extends DeemixError {
+  constructor(message) {
+    super(message);
+    this.name = "TrackError";
+  }
+}
+
+class MD5NotFound extends TrackError {
+  constructor(message) {
+    super(message);
+    this.name = "MD5NotFound";
+  }
+}
+
+class NoDataToParse extends TrackError {
+  constructor(message) {
+    super(message);
+    this.name = "NoDataToParse";
+  }
+}
+
+class AlbumDoesntExists extends TrackError {
+  constructor(message) {
+    super(message);
+    this.name = "AlbumDoesntExists";
+  }
+}
+
+module.exports = {
+  DeemixError,
+  GenerationError,
+  ISRCnotOnDeezer,
+  NotYourPrivatePlaylist,
+  TrackNotOnDeezer,
+  AlbumNotOnDeezer,
+  InvalidID,
+  LinkNotSupported,
+  LinkNotRecognized,
+  ErrorMessages,
+  DownloadError,
+  DownloadFailed,
+  TrackNot360,
+  PreferredBitrateNotFound,
+  DownloadEmpty,
+  DownloadCanceled,
+  TrackError,
+  MD5NotFound,
+  NoDataToParse,
+  AlbumDoesntExists
+}
diff --git a/deemix/itemgen.js b/deemix/itemgen.js
index 33697b8..11b76af 100644
--- a/deemix/itemgen.js
+++ b/deemix/itemgen.js
@@ -2,6 +2,7 @@ const {
   Single,
   Collection
 } = require('./types/DownloadObjects.js')
+const { GenerationError, ISRCnotOnDeezer, InvalidID, NotYourPrivatePlaylist } = require('./errors.js');
 const { LyricsStatus } = require('deezer-js').gw
 const { map_user_playlist } = require('deezer-js').utils
 const { each } = require('async')
@@ -310,84 +311,11 @@ async function generateArtistTopItem(dz, id, bitrate){
   return generatePlaylistItem(dz, playlistAPI.id, bitrate, playlistAPI, artistTopTracksAPI_gw)
 }
 
-class GenerationError extends Error {
-  constructor(link, message) {
-    super(message)
-    this.link = link
-    this.name = "GenerationError"
-  }
-}
-
-class ISRCnotOnDeezer extends GenerationError {
-  constructor(link) {
-    super(link, "Track ISRC is not available on deezer")
-    this.name = "ISRCnotOnDeezer"
-    this.errid = "ISRCnotOnDeezer"
-  }
-}
-
-class NotYourPrivatePlaylist extends GenerationError {
-  constructor(link) {
-    super(link, "You can't download others private playlists.")
-    this.name = "NotYourPrivatePlaylist"
-    this.errid = "notYourPrivatePlaylist"
-  }
-}
-
-class TrackNotOnDeezer extends GenerationError {
-  constructor(link) {
-    super(link, "Track not found on deezer!")
-    this.name = "TrackNotOnDeezer"
-    this.errid = "trackNotOnDeezer"
-  }
-}
-
-class AlbumNotOnDeezer extends GenerationError {
-  constructor(link) {
-    super(link, "Album not found on deezer!")
-    this.name = "AlbumNotOnDeezer"
-    this.errid = "albumNotOnDeezer"
-  }
-}
-
-class InvalidID extends GenerationError {
-  constructor(link) {
-    super(link, "Link ID is invalid!")
-    this.name = "InvalidID"
-    this.errid = "invalidID"
-  }
-}
-
-class LinkNotSupported extends GenerationError {
-  constructor(link) {
-    super(link, "Link is not supported.")
-    this.name = "LinkNotSupported"
-    this.errid = "unsupportedURL"
-  }
-}
-
-class LinkNotRecognized extends GenerationError {
-  constructor(link) {
-    super(link, "Link is not recognized.")
-    this.name = "LinkNotRecognized"
-    this.errid = "invalidURL"
-  }
-}
-
 module.exports = {
   generateTrackItem,
   generateAlbumItem,
   generatePlaylistItem,
   generateArtistItem,
   generateArtistDiscographyItem,
-  generateArtistTopItem,
-
-  GenerationError,
-  ISRCnotOnDeezer,
-  NotYourPrivatePlaylist,
-  TrackNotOnDeezer,
-  AlbumNotOnDeezer,
-  InvalidID,
-  LinkNotSupported,
-  LinkNotRecognized
+  generateArtistTopItem
 }
diff --git a/deemix/types/Track.js b/deemix/types/Track.js
index 01165fe..a3e3b6b 100644
--- a/deemix/types/Track.js
+++ b/deemix/types/Track.js
@@ -8,6 +8,7 @@ const { Date } = require('./Date.js')
 const { VARIOUS_ARTISTS } = require('./index.js')
 const { changeCase } = require('../utils/index.js')
 const { FeaturesOption } = require('../settings.js')
+const { TrackError, NoDataToParse, AlbumDoesntExists } = require('../errros.js');
 
 const {
   generateReplayGainString,
@@ -367,38 +368,6 @@ class Track {
   }
 }
 
-class TrackError extends Error {
-  constructor(message) {
-    super(message);
-    this.name = "TrackError";
-  }
-}
-
-class MD5NotFound extends TrackError {
-  constructor(message) {
-    super(message);
-    this.name = "MD5NotFound";
-  }
-}
-
-class NoDataToParse extends TrackError {
-  constructor(message) {
-    super(message);
-    this.name = "NoDataToParse";
-  }
-}
-
-class AlbumDoesntExists extends TrackError {
-  constructor(message) {
-    super(message);
-    this.name = "AlbumDoesntExists";
-  }
-}
-
 module.exports = {
-  Track,
-  TrackError,
-  MD5NotFound,
-  NoDataToParse,
-  AlbumDoesntExists
+  Track
 }